427880031 has 4 divisors (see below), whose sum is σ = 570506712. Its totient is φ = 285253352.

The previous prime is 427879979. The next prime is 427880041. The reversal of 427880031 is 130088724.

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 427880031 - 2¹⁰ = 427879007 is a prime.

It is a super-2 number, since 2×427880031² = 366162641857121922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 427879974 and 427880001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427880041) 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, 71313336 + ... + 71313341.

It is an arithmetic number, because the mean of its divisors is an integer number (142626678).

Almost surely, 2^427880031 is an apocalyptic number.

427880031 is a deficient number, since it is larger than the sum of its proper divisors (142626681).

427880031 is a wasteful number, since it uses less digits than its factorization.

427880031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142626680.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 427880031 is about 20685.2612021217. The cubic root of 427880031 is about 753.5417849068.

The spelling of 427880031 in words is "four hundred twenty-seven million, eight hundred eighty thousand, thirty-one".