72690627 has 4 divisors (see below), whose sum is σ = 96920840. Its totient is φ = 48460416.

The previous prime is 72690593. The next prime is 72690643. The reversal of 72690627 is 72609627.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-72690627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72690677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12115102 + ... + 12115107.

It is an arithmetic number, because the mean of its divisors is an integer number (24230210).

Almost surely, 2^72690627 is an apocalyptic number.

72690627 is a deficient number, since it is larger than the sum of its proper divisors (24230213).

72690627 is a wasteful number, since it uses less digits than its factorization.

72690627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24230212.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 72690627 is about 8525.8798372954. The cubic root of 72690627 is about 417.3426842252.

The spelling of 72690627 in words is "seventy-two million, six hundred ninety thousand, six hundred twenty-seven".