72988693 has 8 divisors (see below), whose sum is σ = 73728000. Its totient is φ = 72253008.

The previous prime is 72988691. The next prime is 72988763. The reversal of 72988693 is 39688927.

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 72988693 - 2¹ = 72988691 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 72988693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72988691) 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, 56428 + ... + 57706.

It is an arithmetic number, because the mean of its divisors is an integer number (9216000).

Almost surely, 2^72988693 is an apocalyptic number.

It is an amenable number.

72988693 is a deficient number, since it is larger than the sum of its proper divisors (739307).

72988693 is a wasteful number, since it uses less digits than its factorization.

72988693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811.

The product of its digits is 1306368, while the sum is 52.

The square root of 72988693 is about 8543.3420275674. The cubic root of 72988693 is about 417.9123405384.

The spelling of 72988693 in words is "seventy-two million, nine hundred eighty-eight thousand, six hundred ninety-three".