623675091 has 16 divisors (see below), whose sum is σ = 895991040. Its totient is φ = 383604000.

The previous prime is 623675077. The next prime is 623675099. The reversal of 623675091 is 190576326.

It is not a de Polignac number, because 623675091 - 2⁷ = 623674963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (623675099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124330 + ... + 129248.

It is an arithmetic number, because the mean of its divisors is an integer number (55999440).

Almost surely, 2^623675091 is an apocalyptic number.

623675091 is a deficient number, since it is larger than the sum of its proper divisors (272315949).

623675091 is a wasteful number, since it uses less digits than its factorization.

623675091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8186.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 623675091 is about 24973.4877620248. The cubic root of 623675091 is about 854.3833959258.

The spelling of 623675091 in words is "six hundred twenty-three million, six hundred seventy-five thousand, ninety-one".