72024091 has 4 divisors (see below), whose sum is σ = 72041184. Its totient is φ = 72007000.

The previous prime is 72024083. The next prime is 72024107. The reversal of 72024091 is 19042027.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 19042027 = 139 ⋅136993.

It is a cyclic number.

It is not a de Polignac number, because 72024091 - 2³ = 72024083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72024031) 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, 2766 + ... + 12316.

It is an arithmetic number, because the mean of its divisors is an integer number (18010296).

Almost surely, 2^72024091 is an apocalyptic number.

72024091 is a deficient number, since it is larger than the sum of its proper divisors (17093).

72024091 is an equidigital number, since it uses as much as digits as its factorization.

72024091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17092.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 72024091 is about 8486.7008313007. The cubic root of 72024091 is about 416.0631587876.

The spelling of 72024091 in words is "seventy-two million, twenty-four thousand, ninety-one".