72628655 has 16 divisors (see below), whose sum is σ = 95450400. Its totient is φ = 52613760.

The previous prime is 72628643. The next prime is 72628681. The reversal of 72628655 is 55682627.

It is not a de Polignac number, because 72628655 - 2⁴ = 72628639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12341 + ... + 17249.

It is an arithmetic number, because the mean of its divisors is an integer number (5965650).

Almost surely, 2^72628655 is an apocalyptic number.

72628655 is a deficient number, since it is larger than the sum of its proper divisors (22821745).

72628655 is a wasteful number, since it uses less digits than its factorization.

72628655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194.

The product of its digits is 201600, while the sum is 41.

The square root of 72628655 is about 8522.2447160358. The cubic root of 72628655 is about 417.2240494240.

The spelling of 72628655 in words is "seventy-two million, six hundred twenty-eight thousand, six hundred fifty-five".