72754532 has 6 divisors (see below), whose sum is σ = 127320438. Its totient is φ = 36377264.

The previous prime is 72754523. The next prime is 72754567. The reversal of 72754532 is 23545727.

It can be written as a sum of positive squares in only one way, i.e., 50324836 + 22429696 = 7094^2 + 4736^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72754492 and 72754501.

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 as a sum of consecutive naturals, namely, 9094313 + ... + 9094320.

It is an arithmetic number, because the mean of its divisors is an integer number (21220073).

Almost surely, 2^72754532 is an apocalyptic number.

It is an amenable number.

72754532 is a deficient number, since it is larger than the sum of its proper divisors (54565906).

72754532 is a wasteful number, since it uses less digits than its factorization.

72754532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18188637 (or 18188635 counting only the distinct ones).

The product of its digits is 58800, while the sum is 35.

The square root of 72754532 is about 8529.6267210236. The cubic root of 72754532 is about 417.4649488305.

The spelling of 72754532 in words is "seventy-two million, seven hundred fifty-four thousand, five hundred thirty-two".