72895455 has 12 divisors (see below), whose sum is σ = 126352200. Its totient is φ = 38877552.

The previous prime is 72895451. The next prime is 72895481. The reversal of 72895455 is 55459827.

It is not a de Polignac number, because 72895455 - 2² = 72895451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1619899 = 72895455 / (7 + 2 + 8 + 9 + 5 + 4 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 72895455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72895451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 809905 + ... + 809994.

It is an arithmetic number, because the mean of its divisors is an integer number (10529350).

Almost surely, 2^72895455 is an apocalyptic number.

72895455 is a deficient number, since it is larger than the sum of its proper divisors (53456745).

72895455 is a wasteful number, since it uses less digits than its factorization.

72895455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619910 (or 1619907 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 72895455 is about 8537.8835199363. The cubic root of 72895455 is about 417.7343133545.

The spelling of 72895455 in words is "seventy-two million, eight hundred ninety-five thousand, four hundred fifty-five".