72837091 has 2 divisors, whose sum is σ = 72837092. Its totient is φ = 72837090.

The previous prime is 72837077. The next prime is 72837097. The reversal of 72837091 is 19073827.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72837091 - 2⁷ = 72836963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72837091.

It is not a weakly prime, because it can be changed into another prime (72837097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36418545 + 36418546.

It is an arithmetic number, because the mean of its divisors is an integer number (36418546).

Almost surely, 2^72837091 is an apocalyptic number.

72837091 is a deficient number, since it is larger than the sum of its proper divisors (1).

72837091 is an equidigital number, since it uses as much as digits as its factorization.

72837091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 72837091 is about 8534.4648924230. The cubic root of 72837091 is about 417.6227967761.

The spelling of 72837091 in words is "seventy-two million, eight hundred thirty-seven thousand, ninety-one".