427790131 has 4 divisors (see below), whose sum is σ = 430180200. Its totient is φ = 425400064.

The previous prime is 427790119. The next prime is 427790137. The reversal of 427790131 is 131097724.

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 427790131 - 2⁹ = 427789619 is a prime.

It is a super-2 number, since 2×427790131² = 366008792361994322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427790137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194766 + ... + 1195123.

It is an arithmetic number, because the mean of its divisors is an integer number (107545050).

Almost surely, 2^427790131 is an apocalyptic number.

427790131 is a deficient number, since it is larger than the sum of its proper divisors (2390069).

427790131 is a wasteful number, since it uses less digits than its factorization.

427790131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390068.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 427790131 is about 20683.0880431332. The cubic root of 427790131 is about 753.4890067552.

The spelling of 427790131 in words is "four hundred twenty-seven million, seven hundred ninety thousand, one hundred thirty-one".