72618654 has 8 divisors (see below), whose sum is σ = 145237320. Its totient is φ = 24206216.

The previous prime is 72618641. The next prime is 72618661. The reversal of 72618654 is 45681627.

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

72618654 is an admirable number.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 6051549 + ... + 6051560.

It is an arithmetic number, because the mean of its divisors is an integer number (18154665).

Almost surely, 2^72618654 is an apocalyptic number.

72618654 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.

72618654 is a wasteful number, since it uses less digits than its factorization.

72618654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12103114.

The product of its digits is 80640, while the sum is 39.

The square root of 72618654 is about 8521.6579372796. The cubic root of 72618654 is about 417.2048978956.

The spelling of 72618654 in words is "seventy-two million, six hundred eighteen thousand, six hundred fifty-four".