72894799 has 4 divisors (see below), whose sum is σ = 72983560. Its totient is φ = 72806040.

The previous prime is 72894781. The next prime is 72894859. The reversal of 72894799 is 99749827.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72894799 - 2⁹ = 72894287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72894739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43137 + ... + 44794.

It is an arithmetic number, because the mean of its divisors is an integer number (18245890).

Almost surely, 2^72894799 is an apocalyptic number.

72894799 is a deficient number, since it is larger than the sum of its proper divisors (88761).

72894799 is an equidigital number, since it uses as much as digits as its factorization.

72894799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88760.

The product of its digits is 2286144, while the sum is 55.

The square root of 72894799 is about 8537.8451028348. The cubic root of 72894799 is about 417.7330602607.

The spelling of 72894799 in words is "seventy-two million, eight hundred ninety-four thousand, seven hundred ninety-nine".