74734678 has 4 divisors (see below), whose sum is σ = 112102020. Its totient is φ = 37367338.

The previous prime is 74734663. The next prime is 74734687. The reversal of 74734678 is 87643747.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18683668 + ... + 18683671.

It is an arithmetic number, because the mean of its divisors is an integer number (28025505).

Almost surely, 2^74734678 is an apocalyptic number.

74734678 is a deficient number, since it is larger than the sum of its proper divisors (37367342).

74734678 is a wasteful number, since it uses less digits than its factorization.

74734678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37367341.

The product of its digits is 790272, while the sum is 46.

The square root of 74734678 is about 8644.9220933447. The cubic root of 74734678 is about 421.2184534369.

The spelling of 74734678 in words is "seventy-four million, seven hundred thirty-four thousand, six hundred seventy-eight".