32406989 has 8 divisors (see below), whose sum is σ = 34692000. Its totient is φ = 30179952.

The previous prime is 32406967. The next prime is 32406991. The reversal of 32406989 is 98960423.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32406989 - 2⁸ = 32406733 is a prime.

It is a super-2 number, since 2×32406989² = 2100425872092242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32406589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13334 + ... + 15575.

It is an arithmetic number, because the mean of its divisors is an integer number (4336500).

Almost surely, 2^32406989 is an apocalyptic number.

It is an amenable number.

32406989 is a deficient number, since it is larger than the sum of its proper divisors (2285011).

32406989 is a wasteful number, since it uses less digits than its factorization.

32406989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28987.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 32406989 is about 5692.7136762707. The cubic root of 32406989 is about 318.8204917016.

The spelling of 32406989 in words is "thirty-two million, four hundred six thousand, nine hundred eighty-nine".