106439797 has 4 divisors (see below), whose sum is σ = 106494336. Its totient is φ = 106385260.

The previous prime is 106439783. The next prime is 106439897. The reversal of 106439797 is 797934601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 797934601 = 3697 ⋅215833.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106439797 is a prime.

It is a super-2 number, since 2×106439797² = 22658860770802418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106439747) 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, 24229 + ... + 28282.

It is an arithmetic number, because the mean of its divisors is an integer number (26623584).

Almost surely, 2^106439797 is an apocalyptic number.

It is an amenable number.

106439797 is a deficient number, since it is larger than the sum of its proper divisors (54539).

106439797 is an equidigital number, since it uses as much as digits as its factorization.

106439797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54538.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 106439797 is about 10316.9664630646. The cubic root of 106439797 is about 473.9159722746.

The spelling of 106439797 in words is "one hundred six million, four hundred thirty-nine thousand, seven hundred ninety-seven".