74273866 has 4 divisors (see below), whose sum is σ = 111410802. Its totient is φ = 37136932.

The previous prime is 74273863. The next prime is 74273873. The reversal of 74273866 is 66837247.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 65950641 + 8323225 = 8121^2 + 2885^2 .

It is not an unprimeable number, because it can be changed into a prime (74273863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18568465 + ... + 18568468.

Almost surely, 2^74273866 is an apocalyptic number.

74273866 is a deficient number, since it is larger than the sum of its proper divisors (37136936).

74273866 is a wasteful number, since it uses less digits than its factorization.

74273866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37136935.

The product of its digits is 338688, while the sum is 43.

The square root of 74273866 is about 8618.2287043220. The cubic root of 74273866 is about 420.3509274144.

The spelling of 74273866 in words is "seventy-four million, two hundred seventy-three thousand, eight hundred sixty-six".