72747654 has 48 divisors (see below), whose sum is σ = 169974000. Its totient is φ = 20696256.

The previous prime is 72747613. The next prime is 72747667. The reversal of 72747654 is 45674727.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102252 + ... + 102960.

It is an arithmetic number, because the mean of its divisors is an integer number (3541125).

Almost surely, 2^72747654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72747654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84987000).

72747654 is an abundant number, since it is smaller than the sum of its proper divisors (97226346).

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

72747654 is a wasteful number, since it uses less digits than its factorization.

72747654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077 (or 1070 counting only the distinct ones).

The product of its digits is 329280, while the sum is 42.

The square root of 72747654 is about 8529.2235285517. The cubic root of 72747654 is about 417.4517931121.

The spelling of 72747654 in words is "seventy-two million, seven hundred forty-seven thousand, six hundred fifty-four".