73890066 has 16 divisors (see below), whose sum is σ = 150285600. Its totient is φ = 24212448.

The previous prime is 73890049. The next prime is 73890071. The reversal of 73890066 is 66009837.

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 7 ways as a sum of consecutive naturals, for example, 104011 + ... + 104718.

It is an arithmetic number, because the mean of its divisors is an integer number (9392850).

Almost surely, 2^73890066 is an apocalyptic number.

73890066 is an abundant number, since it is smaller than the sum of its proper divisors (76395534).

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

73890066 is a wasteful number, since it uses less digits than its factorization.

73890066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208793.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 73890066 is about 8595.9331081623. The cubic root of 73890066 is about 419.6256414789.

The spelling of 73890066 in words is "seventy-three million, eight hundred ninety thousand, sixty-six".