623918377 has 8 divisors (see below), whose sum is σ = 660852000. Its totient is φ = 587010624.

The previous prime is 623918363. The next prime is 623918381. The reversal of 623918377 is 773819326.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623918377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623918327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67374 + ... + 76072.

It is an arithmetic number, because the mean of its divisors is an integer number (82606500).

Almost surely, 2^623918377 is an apocalyptic number.

It is an amenable number.

623918377 is a deficient number, since it is larger than the sum of its proper divisors (36933623).

623918377 is a wasteful number, since it uses less digits than its factorization.

623918377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12935.

The product of its digits is 381024, while the sum is 46.

The square root of 623918377 is about 24978.3581726262. The cubic root of 623918377 is about 854.4944753966.

The spelling of 623918377 in words is "six hundred twenty-three million, nine hundred eighteen thousand, three hundred seventy-seven".