73752736 has 12 divisors (see below), whose sum is σ = 145200762. Its totient is φ = 36876352.

The previous prime is 73752677. The next prime is 73752739. The reversal of 73752736 is 63725737.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 73205136 + 547600 = 8556^2 + 740^2 .

It is not an unprimeable number, because it can be changed into a prime (73752739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1152355 + ... + 1152418.

Almost surely, 2^73752736 is an apocalyptic number.

It is an amenable number.

73752736 is a deficient number, since it is larger than the sum of its proper divisors (71448026).

73752736 is a wasteful number, since it uses less digits than its factorization.

73752736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304783 (or 2304775 counting only the distinct ones).

The product of its digits is 185220, while the sum is 40.

The square root of 73752736 is about 8587.9413132601. The cubic root of 73752736 is about 419.3655121147.

The spelling of 73752736 in words is "seventy-three million, seven hundred fifty-two thousand, seven hundred thirty-six".