432646531 has 4 divisors (see below), whose sum is σ = 435147552. Its totient is φ = 430145512.

The previous prime is 432646507. The next prime is 432646541. The reversal of 432646531 is 135646234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135646234 = 2 ⋅67823117.

It is a cyclic number.

It is not a de Polignac number, because 432646531 - 2¹⁵ = 432613763 is a prime.

It is a super-2 number, since 2×432646531² = 374366041572667922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (432646541) 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, 1250251 + ... + 1250596.

It is an arithmetic number, because the mean of its divisors is an integer number (108786888).

Almost surely, 2^432646531 is an apocalyptic number.

432646531 is a deficient number, since it is larger than the sum of its proper divisors (2501021).

432646531 is a wasteful number, since it uses less digits than its factorization.

432646531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501020.

The product of its digits is 51840, while the sum is 34.

The square root of 432646531 is about 20800.1569945998. The cubic root of 432646531 is about 756.3295614129.

The spelling of 432646531 in words is "four hundred thirty-two million, six hundred forty-six thousand, five hundred thirty-one".