427355031 has 4 divisors (see below), whose sum is σ = 569806712. Its totient is φ = 284903352.

The previous prime is 427355029. The next prime is 427355041. The reversal of 427355031 is 130553724.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 427355031 - 2¹ = 427355029 is a prime.

It is a super-2 number, since 2×427355031² = 365264645042021922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427355031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427355041) 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, 71225836 + ... + 71225841.

It is an arithmetic number, because the mean of its divisors is an integer number (142451678).

Almost surely, 2^427355031 is an apocalyptic number.

427355031 is a deficient number, since it is larger than the sum of its proper divisors (142451681).

427355031 is a wasteful number, since it uses less digits than its factorization.

427355031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142451680.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 427355031 is about 20672.5671119965. The cubic root of 427355031 is about 753.2334653466.

The spelling of 427355031 in words is "four hundred twenty-seven million, three hundred fifty-five thousand, thirty-one".