72676578 has 16 divisors (see below), whose sum is σ = 156534336. Its totient is φ = 22362000.

The previous prime is 72676561. The next prime is 72676589. The reversal of 72676578 is 87567627.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 465798 + ... + 465953.

It is an arithmetic number, because the mean of its divisors is an integer number (9783396).

Almost surely, 2^72676578 is an apocalyptic number.

72676578 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

72676578 is an abundant number, since it is smaller than the sum of its proper divisors (83857758).

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

72676578 is a wasteful number, since it uses less digits than its factorization.

72676578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931769.

The product of its digits is 987840, while the sum is 48.

The square root of 72676578 is about 8525.0558942449. The cubic root of 72676578 is about 417.3157957281.

The spelling of 72676578 in words is "seventy-two million, six hundred seventy-six thousand, five hundred seventy-eight".