74986478 has 16 divisors (see below), whose sum is σ = 128771424. Its totient is φ = 32081280.

The previous prime is 74986423. The next prime is 74986487. The reversal of 74986478 is 87468947.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4298 + ... + 12978.

It is an arithmetic number, because the mean of its divisors is an integer number (8048214).

Almost surely, 2^74986478 is an apocalyptic number.

74986478 is a deficient number, since it is larger than the sum of its proper divisors (53784946).

74986478 is a wasteful number, since it uses less digits than its factorization.

74986478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9307.

The product of its digits is 2709504, while the sum is 53.

The square root of 74986478 is about 8659.4733096188. The cubic root of 74986478 is about 421.6909869131.

The spelling of 74986478 in words is "seventy-four million, nine hundred eighty-six thousand, four hundred seventy-eight".