232972421 has 4 divisors (see below), whose sum is σ = 254151744. Its totient is φ = 211793100.

The previous prime is 232972393. The next prime is 232972499. The reversal of 232972421 is 124279232.

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 not a de Polignac number, because 232972421 - 2¹⁴ = 232956037 is a prime.

It is a super-2 number, since 2×232972421² = 108552297893202482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232972021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10589645 + ... + 10589666.

It is an arithmetic number, because the mean of its divisors is an integer number (63537936).

Almost surely, 2^232972421 is an apocalyptic number.

It is an amenable number.

232972421 is a deficient number, since it is larger than the sum of its proper divisors (21179323).

232972421 is a wasteful number, since it uses less digits than its factorization.

232972421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21179322.

The product of its digits is 12096, while the sum is 32.

The square root of 232972421 is about 15263.4341155587. The cubic root of 232972421 is about 615.3206700130.

The spelling of 232972421 in words is "two hundred thirty-two million, nine hundred seventy-two thousand, four hundred twenty-one".