623374691 has 8 divisors (see below), whose sum is σ = 665673600. Its totient is φ = 582462720.

The previous prime is 623374673. The next prime is 623374693. The reversal of 623374691 is 196473326.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-623374691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623374693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345806 + ... + 347603.

It is an arithmetic number, because the mean of its divisors is an integer number (83209200).

Almost surely, 2^623374691 is an apocalyptic number.

623374691 is a deficient number, since it is larger than the sum of its proper divisors (42298909).

623374691 is a wasteful number, since it uses less digits than its factorization.

623374691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693469.

The product of its digits is 163296, while the sum is 41.

The square root of 623374691 is about 24967.4726594423. The cubic root of 623374691 is about 854.2461994945.

The spelling of 623374691 in words is "six hundred twenty-three million, three hundred seventy-four thousand, six hundred ninety-one".