72755797 has 8 divisors (see below), whose sum is σ = 73483200. Its totient is φ = 72031584.

The previous prime is 72755777. The next prime is 72755833. The reversal of 72755797 is 79755727.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 72755797 - 2¹¹ = 72753749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72755797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72755707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89529 + ... + 90337.

It is an arithmetic number, because the mean of its divisors is an integer number (9185400).

Almost surely, 2^72755797 is an apocalyptic number.

It is an amenable number.

72755797 is a deficient number, since it is larger than the sum of its proper divisors (727403).

72755797 is a wasteful number, since it uses less digits than its factorization.

72755797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595.

The product of its digits is 1080450, while the sum is 49.

The square root of 72755797 is about 8529.7008740049. The cubic root of 72755797 is about 417.4673683366.

The spelling of 72755797 in words is "seventy-two million, seven hundred fifty-five thousand, seven hundred ninety-seven".