10646401 has 4 divisors (see below), whose sum is σ = 11109312. Its totient is φ = 10183492.

The previous prime is 10646387. The next prime is 10646431. The reversal of 10646401 is 10464601.

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: 10464601 = 7 ⋅1494943.

It is a cyclic number.

It is not a de Polignac number, because 10646401 - 2⁹ = 10645889 is a prime.

It is a super-2 number, since 2×10646401² = 226691708505602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10646431) 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, 231421 + ... + 231466.

It is an arithmetic number, because the mean of its divisors is an integer number (2777328).

Almost surely, 2^10646401 is an apocalyptic number.

It is an amenable number.

10646401 is a deficient number, since it is larger than the sum of its proper divisors (462911).

10646401 is an equidigital number, since it uses as much as digits as its factorization.

10646401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462910.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 10646401 is about 3262.8823147640. The cubic root of 10646401 is about 219.9889870520.

The spelling of 10646401 in words is "ten million, six hundred forty-six thousand, four hundred one".