23031477 has 48 divisors (see below), whose sum is σ = 40734720. Its totient is φ = 12247200.

The previous prime is 23031473. The next prime is 23031493. The reversal of 23031477 is 77413032.

It is not a de Polignac number, because 23031477 - 2² = 23031473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23031477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84852 + ... + 85122.

It is an arithmetic number, because the mean of its divisors is an integer number (848640).

Almost surely, 2^23031477 is an apocalyptic number.

It is an amenable number.

23031477 is a deficient number, since it is larger than the sum of its proper divisors (17703243).

23031477 is a wasteful number, since it uses less digits than its factorization.

23031477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 23031477 is about 4799.1121053795. The cubic root of 23031477 is about 284.5163727614.

The spelling of 23031477 in words is "twenty-three million, thirty-one thousand, four hundred seventy-seven".