32971481 has 4 divisors (see below), whose sum is σ = 33088272. Its totient is φ = 32854692.

The previous prime is 32971453. The next prime is 32971513. The reversal of 32971481 is 18417923.

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 a de Polignac number, because none of the positive numbers 2^k-32971481 is a prime.

It is a super-2 number, since 2×32971481² = 2174237118666722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32971681) 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, 57971 + ... + 58536.

It is an arithmetic number, because the mean of its divisors is an integer number (8272068).

Almost surely, 2^32971481 is an apocalyptic number.

It is an amenable number.

32971481 is a deficient number, since it is larger than the sum of its proper divisors (116791).

32971481 is a wasteful number, since it uses less digits than its factorization.

32971481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116790.

The product of its digits is 12096, while the sum is 35.

The square root of 32971481 is about 5742.0798496712. The cubic root of 32971481 is about 320.6610067009.

The spelling of 32971481 in words is "thirty-two million, nine hundred seventy-one thousand, four hundred eighty-one".