73875666 has 16 divisors (see below), whose sum is σ = 152517888. Its totient is φ = 23830800.

The previous prime is 73875649. The next prime is 73875707. The reversal of 73875666 is 66657837.

It is a super-2 number, since 2×73875666² = 10915228053887112, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198405 + ... + 198776.

It is an arithmetic number, because the mean of its divisors is an integer number (9532368).

Almost surely, 2^73875666 is an apocalyptic number.

73875666 is an abundant number, since it is smaller than the sum of its proper divisors (78642222).

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

73875666 is a wasteful number, since it uses less digits than its factorization.

73875666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397217.

The product of its digits is 1270080, while the sum is 48.

The square root of 73875666 is about 8595.0954619481. The cubic root of 73875666 is about 419.5983802509.

The spelling of 73875666 in words is "seventy-three million, eight hundred seventy-five thousand, six hundred sixty-six".