432372991 has 4 divisors (see below), whose sum is σ = 433200232. Its totient is φ = 431545752.

The previous prime is 432372973. The next prime is 432373103. The reversal of 432372991 is 199273234.

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 432372991 - 2¹¹ = 432370943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432372961) 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, 412836 + ... + 413881.

It is an arithmetic number, because the mean of its divisors is an integer number (108300058).

Almost surely, 2^432372991 is an apocalyptic number.

432372991 is a deficient number, since it is larger than the sum of its proper divisors (827241).

432372991 is an equidigital number, since it uses as much as digits as its factorization.

432372991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827240.

The product of its digits is 81648, while the sum is 40.

The square root of 432372991 is about 20793.5805238059. The cubic root of 432372991 is about 756.1701318017.

The spelling of 432372991 in words is "four hundred thirty-two million, three hundred seventy-two thousand, nine hundred ninety-one".