72959789 has 4 divisors (see below), whose sum is σ = 83382624. Its totient is φ = 62536956.

The previous prime is 72959779. The next prime is 72959837. The reversal of 72959789 is 98795927.

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 72959789 - 2¹² = 72955693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72959729) 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, 5211407 + ... + 5211420.

It is an arithmetic number, because the mean of its divisors is an integer number (20845656).

Almost surely, 2^72959789 is an apocalyptic number.

It is an amenable number.

72959789 is a deficient number, since it is larger than the sum of its proper divisors (10422835).

72959789 is a wasteful number, since it uses less digits than its factorization.

72959789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10422834.

The product of its digits is 2857680, while the sum is 56.

The square root of 72959789 is about 8541.6502503907. The cubic root of 72959789 is about 417.8571679145.

The spelling of 72959789 in words is "seventy-two million, nine hundred fifty-nine thousand, seven hundred eighty-nine".