623349767 has 24 divisors (see below), whose sum is σ = 677400768. Its totient is φ = 572909760.

The previous prime is 623349743. The next prime is 623349787. The reversal of 623349767 is 767943326.

It is not a de Polignac number, because 623349767 - 2¹⁸ = 623087623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623349707) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1670993 + ... + 1671365.

It is an arithmetic number, because the mean of its divisors is an integer number (28225032).

Almost surely, 2^623349767 is an apocalyptic number.

623349767 is a deficient number, since it is larger than the sum of its proper divisors (54051001).

623349767 is a wasteful number, since it uses less digits than its factorization.

623349767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 488 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 47.

The square root of 623349767 is about 24966.9735250390. The cubic root of 623349767 is about 854.2348144124.

The spelling of 623349767 in words is "six hundred twenty-three million, three hundred forty-nine thousand, seven hundred sixty-seven".