72675650 has 12 divisors (see below), whose sum is σ = 135176802. Its totient is φ = 29070240.

The previous prime is 72675649. The next prime is 72675679. The reversal of 72675650 is 5657627.

It can be written as a sum of positive squares in 3 ways, for example, as 26204161 + 46471489 = 5119^2 + 6817^2 .

It is a Curzon number.

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 in 5 ways as a sum of consecutive naturals, for example, 726707 + ... + 726806.

Almost surely, 2^72675650 is an apocalyptic number.

72675650 is a deficient number, since it is larger than the sum of its proper divisors (62501152).

72675650 is a wasteful number, since it uses less digits than its factorization.

72675650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453525 (or 1453520 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The square root of 72675650 is about 8525.0014662755. The cubic root of 72675650 is about 417.3140194993.

The spelling of 72675650 in words is "seventy-two million, six hundred seventy-five thousand, six hundred fifty".