66874246 has 4 divisors (see below), whose sum is σ = 100311372. Its totient is φ = 33437122.

The previous prime is 66874231. The next prime is 66874259. The reversal of 66874246 is 64247866.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64247866 = 2 ⋅32123933.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16718560 + ... + 16718563.

It is an arithmetic number, because the mean of its divisors is an integer number (25077843).

Almost surely, 2^66874246 is an apocalyptic number.

66874246 is a deficient number, since it is larger than the sum of its proper divisors (33437126).

66874246 is a wasteful number, since it uses less digits than its factorization.

66874246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33437125.

The product of its digits is 387072, while the sum is 43.

The square root of 66874246 is about 8177.6675158629. The cubic root of 66874246 is about 405.9005434756.

The spelling of 66874246 in words is "sixty-six million, eight hundred seventy-four thousand, two hundred forty-six".