106906357 has 4 divisors (see below), whose sum is σ = 109795756. Its totient is φ = 104016960.

The previous prime is 106906337. The next prime is 106906391. The reversal of 106906357 is 753609601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 753609601 = 6563 ⋅114827.

It can be written as a sum of positive squares in 2 ways, for example, as 50566321 + 56340036 = 7111^2 + 7506^2 .

It is a cyclic number.

It is not a de Polignac number, because 106906357 - 2¹⁵ = 106873589 is a prime.

It is a super-2 number, since 2×106906357² = 22857938334022898, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 2889361 = 106906357 / (1 + 0 + 6 + 9 + 0 + 6 + 3 + 5 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106906307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1444644 + ... + 1444717.

It is an arithmetic number, because the mean of its divisors is an integer number (27448939).

Almost surely, 2^106906357 is an apocalyptic number.

It is an amenable number.

106906357 is a deficient number, since it is larger than the sum of its proper divisors (2889399).

106906357 is an equidigital number, since it uses as much as digits as its factorization.

106906357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889398.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 106906357 is about 10339.5530367613. The cubic root of 106906357 is about 474.6074052437.

The spelling of 106906357 in words is "one hundred six million, nine hundred six thousand, three hundred fifty-seven".