72357650 has 12 divisors (see below), whose sum is σ = 134585322. Its totient is φ = 28943040.

The previous prime is 72357641. The next prime is 72357671. The reversal of 72357650 is 5675327.

It can be written as a sum of positive squares in 3 ways, for example, as 62047129 + 10310521 = 7877^2 + 3211^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72357650.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 723527 + ... + 723626.

Almost surely, 2^72357650 is an apocalyptic number.

72357650 is a deficient number, since it is larger than the sum of its proper divisors (62227672).

72357650 is a wasteful number, since it uses less digits than its factorization.

72357650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447165 (or 1447160 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 72357650 is about 8506.3299959501. The cubic root of 72357650 is about 416.7044623492.

The spelling of 72357650 in words is "seventy-two million, three hundred fifty-seven thousand, six hundred fifty".