106620715 has 4 divisors (see below), whose sum is σ = 127944864. Its totient is φ = 85296568.

The previous prime is 106620713. The next prime is 106620737. The reversal of 106620715 is 517026601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 106620715 - 2¹ = 106620713 is a prime.

It is a super-2 number, since 2×106620715² = 22735953734222450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106620713) 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, 10662067 + ... + 10662076.

It is an arithmetic number, because the mean of its divisors is an integer number (31986216).

Almost surely, 2^106620715 is an apocalyptic number.

106620715 is a deficient number, since it is larger than the sum of its proper divisors (21324149).

106620715 is an equidigital number, since it uses as much as digits as its factorization.

106620715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21324148.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 106620715 is about 10325.7307247478. The cubic root of 106620715 is about 474.1843286605.

The spelling of 106620715 in words is "one hundred six million, six hundred twenty thousand, seven hundred fifteen".