72752478 has 8 divisors (see below), whose sum is σ = 145504968. Its totient is φ = 24250824.

The previous prime is 72752467. The next prime is 72752479. The reversal of 72752478 is 87425727.

It is a sphenic number, since it is the product of 3 distinct primes.

72752478 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72752479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6062701 + ... + 6062712.

It is an arithmetic number, because the mean of its divisors is an integer number (18188121).

Almost surely, 2^72752478 is an apocalyptic number.

72752478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72752478 is a wasteful number, since it uses less digits than its factorization.

72752478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12125418.

The product of its digits is 219520, while the sum is 42.

The square root of 72752478 is about 8529.5063163116. The cubic root of 72752478 is about 417.4610201814.

The spelling of 72752478 in words is "seventy-two million, seven hundred fifty-two thousand, four hundred seventy-eight".