32997971 has 4 divisors (see below), whose sum is σ = 33450072. Its totient is φ = 32545872.

The previous prime is 32997967. The next prime is 32997973. The reversal of 32997971 is 17979923.

32997971 = T₁₄₈ + T₁₄₉ + ... + T₅₈₅.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 32997971 - 2² = 32997967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32997973) 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, 225941 + ... + 226086.

It is an arithmetic number, because the mean of its divisors is an integer number (8362518).

Almost surely, 2^32997971 is an apocalyptic number.

32997971 is a deficient number, since it is larger than the sum of its proper divisors (452101).

32997971 is an equidigital number, since it uses as much as digits as its factorization.

32997971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452100.

The product of its digits is 214326, while the sum is 47.

The square root of 32997971 is about 5744.3860420414. The cubic root of 32997971 is about 320.7468590394.

The spelling of 32997971 in words is "thirty-two million, nine hundred ninety-seven thousand, nine hundred seventy-one".