73502489 has 2 divisors, whose sum is σ = 73502490. Its totient is φ = 73502488.

The previous prime is 73502479. The next prime is 73502497. The reversal of 73502489 is 98420537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51337225 + 22165264 = 7165^2 + 4708^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73502489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73502479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36751244 + 36751245.

It is an arithmetic number, because the mean of its divisors is an integer number (36751245).

Almost surely, 2^73502489 is an apocalyptic number.

It is an amenable number.

73502489 is a deficient number, since it is larger than the sum of its proper divisors (1).

73502489 is an equidigital number, since it uses as much as digits as its factorization.

73502489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 73502489 is about 8573.3592599401. The cubic root of 73502489 is about 418.8906647355.

The spelling of 73502489 in words is "seventy-three million, five hundred two thousand, four hundred eighty-nine".