10646397 has 10 divisors (see below), whose sum is σ = 15903998. Its totient is φ = 7097544.

The previous prime is 10646387. The next prime is 10646431. The reversal of 10646397 is 79364601.

10646397 is a `hidden beast` number, since 1 + 0 + 646 + 3 + 9 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9036036 + 1610361 = 3006^2 + 1269^2 .

It is not a de Polignac number, because 10646397 - 2⁴ = 10646381 is a prime.

It is a super-2 number, since 2×10646397² = 226691538163218, 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 (10646387) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 65638 + ... + 65799.

Almost surely, 2^10646397 is an apocalyptic number.

It is an amenable number.

10646397 is a deficient number, since it is larger than the sum of its proper divisors (5257601).

10646397 is an equidigital number, since it uses as much as digits as its factorization.

10646397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131449 (or 131440 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 10646397 is about 3262.8817018090. The cubic root of 10646397 is about 219.9889595010.

The spelling of 10646397 in words is "ten million, six hundred forty-six thousand, three hundred ninety-seven".