73818890 has 8 divisors (see below), whose sum is σ = 132874020. Its totient is φ = 29527552.

The previous prime is 73818889. The next prime is 73818911. The reversal of 73818890 is 9881837.

It can be written as a sum of positive squares in 2 ways, for example, as 62047129 + 11771761 = 7877^2 + 3431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 3690935 + ... + 3690954.

Almost surely, 2^73818890 is an apocalyptic number.

73818890 is a deficient number, since it is larger than the sum of its proper divisors (59055130).

73818890 is a wasteful number, since it uses less digits than its factorization.

73818890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7381896.

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 73818890 is about 8591.7920133113. The cubic root of 73818890 is about 419.4908607545.

The spelling of 73818890 in words is "seventy-three million, eight hundred eighteen thousand, eight hundred ninety".