73840866 has 32 divisors (see below), whose sum is σ = 163757376. Its totient is φ = 22008000.

The previous prime is 73840849. The next prime is 73840883. The reversal of 73840866 is 66804837.

It is an interprime number because it is at equal distance from previous prime (73840849) and next prime (73840883).

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 5145 + ... + 13196.

It is an arithmetic number, because the mean of its divisors is an integer number (5117418).

Almost surely, 2^73840866 is an apocalyptic number.

73840866 is an abundant number, since it is smaller than the sum of its proper divisors (89916510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73840866 is a wasteful number, since it uses less digits than its factorization.

73840866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18418.

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 73840866 is about 8593.0708131610. The cubic root of 73840866 is about 419.5324843213.

The spelling of 73840866 in words is "seventy-three million, eight hundred forty thousand, eight hundred sixty-six".