72964550 has 24 divisors (see below), whose sum is σ = 138874296. Its totient is φ = 28506240.

The previous prime is 72964537. The next prime is 72964583. The reversal of 72964550 is 5546927.

It is a happy number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 14819 + ... + 19118.

It is an arithmetic number, because the mean of its divisors is an integer number (5786429).

Almost surely, 2^72964550 is an apocalyptic number.

72964550 is a deficient number, since it is larger than the sum of its proper divisors (65909746).

72964550 is a wasteful number, since it uses less digits than its factorization.

72964550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33992 (or 33987 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 72964550 is about 8541.9289390629. The cubic root of 72964550 is about 417.8662568237.

The spelling of 72964550 in words is "seventy-two million, nine hundred sixty-four thousand, five hundred fifty".