32968921 has 4 divisors (see below), whose sum is σ = 33433344. Its totient is φ = 32504500.

The previous prime is 32968907. The next prime is 32968939. The reversal of 32968921 is 12986923.

It is a happy number.

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: 12986923 = 31 ⋅418933.

It is a cyclic number.

It is not a de Polignac number, because 32968921 - 2¹⁵ = 32936153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32968421) 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, 232105 + ... + 232246.

It is an arithmetic number, because the mean of its divisors is an integer number (8358336).

Almost surely, 2^32968921 is an apocalyptic number.

It is an amenable number.

32968921 is a deficient number, since it is larger than the sum of its proper divisors (464423).

32968921 is an equidigital number, since it uses as much as digits as its factorization.

32968921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464422.

The product of its digits is 46656, while the sum is 40.

The square root of 32968921 is about 5741.8569296004. The cubic root of 32968921 is about 320.6527074738.

The spelling of 32968921 in words is "thirty-two million, nine hundred sixty-eight thousand, nine hundred twenty-one".