72033979 has 2 divisors, whose sum is σ = 72033980. Its totient is φ = 72033978.

The previous prime is 72033937. The next prime is 72033989. The reversal of 72033979 is 97933027.

It is a strong prime.

It is an emirp because it is prime and its reverse (97933027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72033979 - 2¹¹ = 72031931 is a prime.

It is not a weakly prime, because it can be changed into another prime (72033919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36016989 + 36016990.

It is an arithmetic number, because the mean of its divisors is an integer number (36016990).

Almost surely, 2^72033979 is an apocalyptic number.

72033979 is a deficient number, since it is larger than the sum of its proper divisors (1).

72033979 is an equidigital number, since it uses as much as digits as its factorization.

72033979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 72033979 is about 8487.2833698422. The cubic root of 72033979 is about 416.0821979924.

The spelling of 72033979 in words is "seventy-two million, thirty-three thousand, nine hundred seventy-nine".