427801957 has 16 divisors (see below), whose sum is σ = 495206784. Its totient is φ = 365248000.

The previous prime is 427801949. The next prime is 427801981. The reversal of 427801957 is 759108724.

It is a cyclic number.

It is not a de Polignac number, because 427801957 - 2³ = 427801949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427801937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95232 + ... + 99622.

It is an arithmetic number, because the mean of its divisors is an integer number (30950424).

Almost surely, 2^427801957 is an apocalyptic number.

It is an amenable number.

427801957 is a deficient number, since it is larger than the sum of its proper divisors (67404827).

427801957 is a wasteful number, since it uses less digits than its factorization.

427801957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 427801957 is about 20683.3739269008. The cubic root of 427801957 is about 753.4959499409.

The spelling of 427801957 in words is "four hundred twenty-seven million, eight hundred one thousand, nine hundred fifty-seven".