66893474 has 8 divisors (see below), whose sum is σ = 103577088. Its totient is φ = 32367780.

The previous prime is 66893413. The next prime is 66893483. The reversal of 66893474 is 47439866.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539402 + ... + 539525.

It is an arithmetic number, because the mean of its divisors is an integer number (12947136).

Almost surely, 2^66893474 is an apocalyptic number.

66893474 is a deficient number, since it is larger than the sum of its proper divisors (36683614).

66893474 is a wasteful number, since it uses less digits than its factorization.

66893474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078960.

The product of its digits is 870912, while the sum is 47.

The square root of 66893474 is about 8178.8430722199. The cubic root of 66893474 is about 405.9394418967.

The spelling of 66893474 in words is "sixty-six million, eight hundred ninety-three thousand, four hundred seventy-four".