427725923 has 4 divisors (see below), whose sum is σ = 434109960. Its totient is φ = 421341888.

The previous prime is 427725889. The next prime is 427725983. The reversal of 427725923 is 329527724.

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 427725923 - 2¹⁸ = 427463779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427725983) 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, 3191918 + ... + 3192051.

It is an arithmetic number, because the mean of its divisors is an integer number (108527490).

Almost surely, 2^427725923 is an apocalyptic number.

427725923 is a deficient number, since it is larger than the sum of its proper divisors (6384037).

427725923 is an equidigital number, since it uses as much as digits as its factorization.

427725923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6384036.

The product of its digits is 211680, while the sum is 41.

The square root of 427725923 is about 20681.5357988714. The cubic root of 427725923 is about 753.4513072391.

The spelling of 427725923 in words is "four hundred twenty-seven million, seven hundred twenty-five thousand, nine hundred twenty-three".