72644035 has 8 divisors (see below), whose sum is σ = 87288336. Its totient is φ = 58038240.

The previous prime is 72644029. The next prime is 72644053. The reversal of 72644035 is 53044627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72644035 - 2⁵ = 72644003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72643988 and 72644006.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5296 + ... + 13165.

It is an arithmetic number, because the mean of its divisors is an integer number (10911042).

Almost surely, 2^72644035 is an apocalyptic number.

72644035 is a deficient number, since it is larger than the sum of its proper divisors (14644301).

72644035 is a wasteful number, since it uses less digits than its factorization.

72644035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19253.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 72644035 is about 8523.1470126943. The cubic root of 72644035 is about 417.2534980991.

The spelling of 72644035 in words is "seventy-two million, six hundred forty-four thousand, thirty-five".