73057987 has 2 divisors, whose sum is σ = 73057988. Its totient is φ = 73057986.

The previous prime is 73057969. The next prime is 73058071. The reversal of 73057987 is 78975037.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73057987 is a prime.

It is not a weakly prime, because it can be changed into another prime (73057927) 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 as a sum of consecutive naturals, namely, 36528993 + 36528994.

It is an arithmetic number, because the mean of its divisors is an integer number (36528994).

Almost surely, 2^73057987 is an apocalyptic number.

73057987 is a deficient number, since it is larger than the sum of its proper divisors (1).

73057987 is an equidigital number, since it uses as much as digits as its factorization.

73057987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 370440, while the sum is 46.

The square root of 73057987 is about 8547.3965041994. The cubic root of 73057987 is about 418.0445512369.

The spelling of 73057987 in words is "seventy-three million, fifty-seven thousand, nine hundred eighty-seven".