73889899 has 2 divisors, whose sum is σ = 73889900. Its totient is φ = 73889898.

The previous prime is 73889863. The next prime is 73889903. The reversal of 73889899 is 99898837.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73889899 - 2¹³ = 73881707 is a prime.

It is not a weakly prime, because it can be changed into another prime (73889819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36944949 + 36944950.

It is an arithmetic number, because the mean of its divisors is an integer number (36944950).

Almost surely, 2^73889899 is an apocalyptic number.

73889899 is a deficient number, since it is larger than the sum of its proper divisors (1).

73889899 is an equidigital number, since it uses as much as digits as its factorization.

73889899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 61.

The square root of 73889899 is about 8595.9233942608. The cubic root of 73889899 is about 419.6253253447.

The spelling of 73889899 in words is "seventy-three million, eight hundred eighty-nine thousand, eight hundred ninety-nine".