72986099 has 4 divisors (see below), whose sum is σ = 73146264. Its totient is φ = 72825936.

The previous prime is 72986077. The next prime is 72986101. The reversal of 72986099 is 99068927.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99068927 = 71 ⋅1395337.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72986099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72986399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79397 + ... + 80310.

It is an arithmetic number, because the mean of its divisors is an integer number (18286566).

Almost surely, 2^72986099 is an apocalyptic number.

72986099 is a deficient number, since it is larger than the sum of its proper divisors (160165).

72986099 is a wasteful number, since it uses less digits than its factorization.

72986099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160164.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 72986099 is about 8543.1902120929. The cubic root of 72986099 is about 417.9073896462.

The spelling of 72986099 in words is "seventy-two million, nine hundred eighty-six thousand, ninety-nine".