10657009 has 4 divisors (see below), whose sum is σ = 11625840. Its totient is φ = 9688180.

The previous prime is 10656923. The next prime is 10657013. The reversal of 10657009 is 90075601.

It is a happy number.

10657009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 10657009 - 2¹⁷ = 10525937 is a prime.

It is a super-2 number, since 2×10657009² = 227143681652162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10657709) 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, 484399 + ... + 484420.

It is an arithmetic number, because the mean of its divisors is an integer number (2906460).

Almost surely, 2^10657009 is an apocalyptic number.

It is an amenable number.

10657009 is a deficient number, since it is larger than the sum of its proper divisors (968831).

10657009 is an equidigital number, since it uses as much as digits as its factorization.

10657009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968830.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 10657009 is about 3264.5074666785. The cubic root of 10657009 is about 220.0620279644.

The spelling of 10657009 in words is "ten million, six hundred fifty-seven thousand, nine".