72990699 has 16 divisors (see below), whose sum is σ = 99470592. Its totient is φ = 47591648.

The previous prime is 72990691. The next prime is 72990703. The reversal of 72990699 is 99609927.

It is a cyclic number.

It is not a de Polignac number, because 72990699 - 2³ = 72990691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72990691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73762 + ... + 74744.

It is an arithmetic number, because the mean of its divisors is an integer number (6216912).

Almost surely, 2^72990699 is an apocalyptic number.

72990699 is a deficient number, since it is larger than the sum of its proper divisors (26479893).

72990699 is a wasteful number, since it uses less digits than its factorization.

72990699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506.

The product of its (nonzero) digits is 551124, while the sum is 51.

The square root of 72990699 is about 8543.4594281239. The cubic root of 72990699 is about 417.9161690971.

The spelling of 72990699 in words is "seventy-two million, nine hundred ninety thousand, six hundred ninety-nine".