72763999 has 8 divisors (see below), whose sum is σ = 90718848. Its totient is φ = 56699160.

The previous prime is 72763993. The next prime is 72764017. The reversal of 72763999 is 99936727.

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

It is not a de Polignac number, because 72763999 - 2⁵ = 72763967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72763993) 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, 472417 + ... + 472570.

It is an arithmetic number, because the mean of its divisors is an integer number (11339856).

Almost surely, 2^72763999 is an apocalyptic number.

72763999 is a deficient number, since it is larger than the sum of its proper divisors (17954849).

72763999 is a wasteful number, since it uses less digits than its factorization.

72763999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945005.

The product of its digits is 1285956, while the sum is 52.

The square root of 72763999 is about 8530.1816510553. The cubic root of 72763999 is about 417.4830552364.

The spelling of 72763999 in words is "seventy-two million, seven hundred sixty-three thousand, nine hundred ninety-nine".