32957409 has 4 divisors (see below), whose sum is σ = 43943216. Its totient is φ = 21971604.

The previous prime is 32957401. The next prime is 32957443. The reversal of 32957409 is 90475923.

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: 90475923 = 3 ⋅30158641.

It is not a de Polignac number, because 32957409 - 2³ = 32957401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32957401) 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, 5492899 + ... + 5492904.

It is an arithmetic number, because the mean of its divisors is an integer number (10985804).

Almost surely, 2^32957409 is an apocalyptic number.

It is an amenable number.

32957409 is a deficient number, since it is larger than the sum of its proper divisors (10985807).

32957409 is a wasteful number, since it uses less digits than its factorization.

32957409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10985806.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 32957409 is about 5740.8543789231. The cubic root of 32957409 is about 320.6153815763.

The spelling of 32957409 in words is "thirty-two million, nine hundred fifty-seven thousand, four hundred nine".