32997408 has 48 divisors (see below), whose sum is σ = 91717920. Its totient is φ = 10351616.

The previous prime is 32997379. The next prime is 32997427. The reversal of 32997408 is 80479923.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×32997408³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32997408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8478 + ... + 11741.

It is an arithmetic number, because the mean of its divisors is an integer number (1910790).

Almost surely, 2^32997408 is an apocalyptic number.

It is an amenable number.

32997408 is an abundant number, since it is smaller than the sum of its proper divisors (58720512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32997408 is a wasteful number, since it uses less digits than its factorization.

32997408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20249 (or 20241 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 32997408 is about 5744.3370374657. The cubic root of 32997408 is about 320.7450348716.

The spelling of 32997408 in words is "thirty-two million, nine hundred ninety-seven thousand, four hundred eight".