73184989 has 8 divisors (see below), whose sum is σ = 73923840. Its totient is φ = 72449376.

The previous prime is 73184987. The next prime is 73185031. The reversal of 73184989 is 98948137.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 73184989 - 2¹ = 73184987 is a prime.

It is a super-2 number, since 2×73184989² = 10712085229860242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73184981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84372 + ... + 85234.

It is an arithmetic number, because the mean of its divisors is an integer number (9240480).

Almost surely, 2^73184989 is an apocalyptic number.

It is an amenable number.

73184989 is a deficient number, since it is larger than the sum of its proper divisors (738851).

73184989 is a wasteful number, since it uses less digits than its factorization.

73184989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619.

The product of its digits is 435456, while the sum is 49.

The square root of 73184989 is about 8554.8225580663. The cubic root of 73184989 is about 418.2866500642.

The spelling of 73184989 in words is "seventy-three million, one hundred eighty-four thousand, nine hundred eighty-nine".