427975751 has 6 divisors (see below), whose sum is σ = 497849400. Its totient is φ = 366836316.

The previous prime is 427975733. The next prime is 427975759. The reversal of 427975751 is 157579724.

It is not a de Polignac number, because 427975751 - 2²² = 423781447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427975696 and 427975705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427975759) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4367051 + ... + 4367148.

It is an arithmetic number, because the mean of its divisors is an integer number (82974900).

Almost surely, 2^427975751 is an apocalyptic number.

427975751 is a deficient number, since it is larger than the sum of its proper divisors (69873649).

427975751 is an equidigital number, since it uses as much as digits as its factorization.

427975751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8734213 (or 8734206 counting only the distinct ones).

The product of its digits is 617400, while the sum is 47.

The square root of 427975751 is about 20687.5747974479. The cubic root of 427975751 is about 753.5979717166.

The spelling of 427975751 in words is "four hundred twenty-seven million, nine hundred seventy-five thousand, seven hundred fifty-one".