623530775 has 12 divisors (see below), whose sum is σ = 883632432. Its totient is φ = 427563840.

The previous prime is 623530753. The next prime is 623530781. The reversal of 623530775 is 577035326.

It is not a de Polignac number, because 623530775 - 2⁸ = 623530519 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1781342 + ... + 1781691.

It is an arithmetic number, because the mean of its divisors is an integer number (73636036).

Almost surely, 2^623530775 is an apocalyptic number.

623530775 is a deficient number, since it is larger than the sum of its proper divisors (260101657).

623530775 is a wasteful number, since it uses less digits than its factorization.

623530775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563050 (or 3563045 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 38.

The square root of 623530775 is about 24970.5982106957. The cubic root of 623530775 is about 854.3174905061.

The spelling of 623530775 in words is "six hundred twenty-three million, five hundred thirty thousand, seven hundred seventy-five".