72080901 has 32 divisors (see below), whose sum is σ = 115240320. Its totient is φ = 44358912.

The previous prime is 72080893. The next prime is 72080903. The reversal of 72080901 is 10908027.

It is not a de Polignac number, because 72080901 - 2³ = 72080893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72080903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22846 + ... + 25808.

It is an arithmetic number, because the mean of its divisors is an integer number (3601260).

Almost surely, 2^72080901 is an apocalyptic number.

It is an amenable number.

72080901 is a deficient number, since it is larger than the sum of its proper divisors (43159419).

72080901 is a wasteful number, since it uses less digits than its factorization.

72080901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042 (or 3036 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 72080901 is about 8490.0471730138. The cubic root of 72080901 is about 416.1725218997.

Adding to 72080901 its reverse (10908027), we get a palindrome (82988928).

The spelling of 72080901 in words is "seventy-two million, eighty thousand, nine hundred one".