427522723 has 4 divisors (see below), whose sum is σ = 429033688. Its totient is φ = 426011760.

The previous prime is 427522687. The next prime is 427522759. The reversal of 427522723 is 327225724.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (427522687) and next prime (427522759).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427522723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427522793) 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, 755058 + ... + 755623.

It is an arithmetic number, because the mean of its divisors is an integer number (107258422).

Almost surely, 2^427522723 is an apocalyptic number.

427522723 is a deficient number, since it is larger than the sum of its proper divisors (1510965).

427522723 is a wasteful number, since it uses less digits than its factorization.

427522723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510964.

The product of its digits is 47040, while the sum is 34.

The square root of 427522723 is about 20676.6226207280. The cubic root of 427522723 is about 753.3319741581.

The spelling of 427522723 in words is "four hundred twenty-seven million, five hundred twenty-two thousand, seven hundred twenty-three".