74678770 has 32 divisors (see below), whose sum is σ = 142041600. Its totient is φ = 28222656.

The previous prime is 74678767. The next prime is 74678801. The reversal of 74678770 is 7787647.

It is a self number, because there is not a number n which added to its sum of digits gives 74678770.

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 in 15 ways as a sum of consecutive naturals, for example, 10891 + ... + 16369.

It is an arithmetic number, because the mean of its divisors is an integer number (4438800).

Almost surely, 2^74678770 is an apocalyptic number.

74678770 is a deficient number, since it is larger than the sum of its proper divisors (67362830).

74678770 is a wasteful number, since it uses less digits than its factorization.

74678770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5562.

The product of its (nonzero) digits is 460992, while the sum is 46.

The square root of 74678770 is about 8641.6879138279. The cubic root of 74678770 is about 421.1133912947.

The spelling of 74678770 in words is "seventy-four million, six hundred seventy-eight thousand, seven hundred seventy".