73679489 has 12 divisors (see below), whose sum is σ = 80249148. Its totient is φ = 67245120.

The previous prime is 73679483. The next prime is 73679491. The reversal of 73679489 is 98497637.

It can be written as a sum of positive squares in 6 ways, for example, as 25959025 + 47720464 = 5095^2 + 6908^2 .

It is a de Polignac number, because none of the positive numbers 2^k-73679489 is a prime.

It is a super-2 number, since 2×73679489² = 10857334198602242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73679489.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73679483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 406979 + ... + 407159.

It is an arithmetic number, because the mean of its divisors is an integer number (6687429).

Almost surely, 2^73679489 is an apocalyptic number.

It is an amenable number.

73679489 is a deficient number, since it is larger than the sum of its proper divisors (6569659).

73679489 is a wasteful number, since it uses less digits than its factorization.

73679489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 367 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 53.

The square root of 73679489 is about 8583.6757277987. The cubic root of 73679489 is about 419.2266361813.

The spelling of 73679489 in words is "seventy-three million, six hundred seventy-nine thousand, four hundred eighty-nine".