623897167 has 6 divisors (see below), whose sum is σ = 658462488. Its totient is φ = 591060132.

The previous prime is 623897159. The next prime is 623897171. The reversal of 623897167 is 761798326.

It is a happy number.

It is not a de Polignac number, because 623897167 - 2³ = 623897159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 623897167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623897177) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 863763 + ... + 864484.

It is an arithmetic number, because the mean of its divisors is an integer number (109743748).

Almost surely, 2^623897167 is an apocalyptic number.

623897167 is a deficient number, since it is larger than the sum of its proper divisors (34565321).

623897167 is a wasteful number, since it uses less digits than its factorization.

623897167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728285 (or 1728266 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The square root of 623897167 is about 24977.9336014811. The cubic root of 623897167 is about 854.4847924883.

The spelling of 623897167 in words is "six hundred twenty-three million, eight hundred ninety-seven thousand, one hundred sixty-seven".