72839065 has 16 divisors (see below), whose sum is σ = 99086400. Its totient is φ = 50956992.

The previous prime is 72839059. The next prime is 72839077. The reversal of 72839065 is 56093827.

It is a cyclic number.

It is not a de Polignac number, because 72839065 - 2⁷ = 72838937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28255 + ... + 30724.

It is an arithmetic number, because the mean of its divisors is an integer number (6192900).

Almost surely, 2^72839065 is an apocalyptic number.

It is an amenable number.

72839065 is a deficient number, since it is larger than the sum of its proper divisors (26247335).

72839065 is a wasteful number, since it uses less digits than its factorization.

72839065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59016.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 72839065 is about 8534.5805403664. The cubic root of 72839065 is about 417.6265694874.

It can be divided in two parts, 728 and 39065, that added together give a palindrome (39793).

The spelling of 72839065 in words is "seventy-two million, eight hundred thirty-nine thousand, sixty-five".