72699308 has 24 divisors (see below), whose sum is σ = 139046544. Its totient is φ = 32984000.

The previous prime is 72699281. The next prime is 72699311. The reversal of 72699308 is 80399627.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29666 + ... + 32022.

It is an arithmetic number, because the mean of its divisors is an integer number (5793606).

Almost surely, 2^72699308 is an apocalyptic number.

It is an amenable number.

72699308 is a deficient number, since it is larger than the sum of its proper divisors (66347236).

72699308 is a wasteful number, since it uses less digits than its factorization.

72699308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073 (or 3071 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 72699308 is about 8526.3889191146. The cubic root of 72699308 is about 417.3592971311.

The spelling of 72699308 in words is "seventy-two million, six hundred ninety-nine thousand, three hundred eight".