427997090 has 16 divisors (see below), whose sum is σ = 771113088. Its totient is φ = 171039216.

The previous prime is 427997071. The next prime is 427997099. The reversal of 427997090 is 90799724.

It is not an unprimeable number, because it can be changed into a prime (427997099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8372 + ... + 30431.

It is an arithmetic number, because the mean of its divisors is an integer number (48194568).

Almost surely, 2^427997090 is an apocalyptic number.

427997090 is a deficient number, since it is larger than the sum of its proper divisors (343115998).

427997090 is a wasteful number, since it uses less digits than its factorization.

427997090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39913.

The product of its (nonzero) digits is 285768, while the sum is 47.

The square root of 427997090 is about 20688.0905353781. The cubic root of 427997090 is about 753.6104963825.

The spelling of 427997090 in words is "four hundred twenty-seven million, nine hundred ninety-seven thousand, ninety".