72538701 has 4 divisors (see below), whose sum is σ = 96718272. Its totient is φ = 48359132.

The previous prime is 72538693. The next prime is 72538703. The reversal of 72538701 is 10783527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72538701 - 2³ = 72538693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72538703) 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 3 ways as a sum of consecutive naturals, for example, 12089781 + ... + 12089786.

It is an arithmetic number, because the mean of its divisors is an integer number (24179568).

Almost surely, 2^72538701 is an apocalyptic number.

It is an amenable number.

72538701 is a deficient number, since it is larger than the sum of its proper divisors (24179571).

72538701 is a wasteful number, since it uses less digits than its factorization.

72538701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24179570.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 72538701 is about 8516.9654807331. The cubic root of 72538701 is about 417.0517277353.

The spelling of 72538701 in words is "seventy-two million, five hundred thirty-eight thousand, seven hundred one".