623566475 has 12 divisors (see below), whose sum is σ = 883683024. Its totient is φ = 427588320.

The previous prime is 623566469. The next prime is 623566481. The reversal of 623566475 is 574665326.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (623566469) and next prime (623566481).

It is not a de Polignac number, because 623566475 - 2¹⁰ = 623565451 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1781444 + ... + 1781793.

It is an arithmetic number, because the mean of its divisors is an integer number (73640252).

Almost surely, 2^623566475 is an apocalyptic number.

623566475 is a deficient number, since it is larger than the sum of its proper divisors (260116549).

623566475 is a wasteful number, since it uses less digits than its factorization.

623566475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563254 (or 3563249 counting only the distinct ones).

The product of its digits is 907200, while the sum is 44.

The square root of 623566475 is about 24971.3130411679. The cubic root of 623566475 is about 854.3337947280. Note that the first 3 decimals are identical.

The spelling of 623566475 in words is "six hundred twenty-three million, five hundred sixty-six thousand, four hundred seventy-five".