427550431 has 12 divisors (see below), whose sum is σ = 542569320. Its totient is φ = 333155760.

The previous prime is 427550411. The next prime is 427550447. The reversal of 427550431 is 134055724.

It is not a de Polignac number, because 427550431 - 2⁹ = 427549919 is a prime.

It is a super-2 number, since 2×427550431² = 365598742096571522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427550393 and 427550402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427550401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 396076 + ... + 397153.

It is an arithmetic number, because the mean of its divisors is an integer number (45214110).

Almost surely, 2^427550431 is an apocalyptic number.

427550431 is a deficient number, since it is larger than the sum of its proper divisors (115018889).

427550431 is a wasteful number, since it uses less digits than its factorization.

427550431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793254 (or 793247 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 427550431 is about 20677.2926419297. The cubic root of 427550431 is about 753.3482484364.

The spelling of 427550431 in words is "four hundred twenty-seven million, five hundred fifty thousand, four hundred thirty-one".