72690116 has 6 divisors (see below), whose sum is σ = 127207710. Its totient is φ = 36345056.

The previous prime is 72690091. The next prime is 72690131. The reversal of 72690116 is 61109627.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 72318016 + 372100 = 8504^2 + 610^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9086261 + ... + 9086268.

It is an arithmetic number, because the mean of its divisors is an integer number (21201285).

Almost surely, 2^72690116 is an apocalyptic number.

It is an amenable number.

72690116 is a deficient number, since it is larger than the sum of its proper divisors (54517594).

72690116 is a wasteful number, since it uses less digits than its factorization.

72690116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18172533 (or 18172531 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 72690116 is about 8525.8498696611. The cubic root of 72690116 is about 417.3417062788.

The spelling of 72690116 in words is "seventy-two million, six hundred ninety thousand, one hundred sixteen".