74790894 has 32 divisors (see below), whose sum is σ = 158434560. Its totient is φ = 23487552.

The previous prime is 74790869. The next prime is 74790899. The reversal of 74790894 is 49809747.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74790899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5202 + ... + 13290.

It is an arithmetic number, because the mean of its divisors is an integer number (4951080).

Almost surely, 2^74790894 is an apocalyptic number.

74790894 is the 4623-rd nonagonal number.

74790894 is an abundant number, since it is smaller than the sum of its proper divisors (83643666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74790894 is a wasteful number, since it uses less digits than its factorization.

74790894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8184.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 74790894 is about 8648.1728706126. The cubic root of 74790894 is about 421.3240415541.

The spelling of 74790894 in words is "seventy-four million, seven hundred ninety thousand, eight hundred ninety-four".