74870830 has 32 divisors (see below), whose sum is σ = 142365600. Its totient is φ = 28271232.

The previous prime is 74870759. The next prime is 74870843. The reversal of 74870830 is 3807847.

It is a self number, because there is not a number n which added to its sum of digits gives 74870830.

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 in 15 ways as a sum of consecutive naturals, for example, 73404 + ... + 74416.

It is an arithmetic number, because the mean of its divisors is an integer number (4448925).

Almost surely, 2^74870830 is an apocalyptic number.

74870830 is a deficient number, since it is larger than the sum of its proper divisors (67494770).

74870830 is a wasteful number, since it uses less digits than its factorization.

74870830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 74870830 is about 8652.7931906408. The cubic root of 74870830 is about 421.4740908685.

The spelling of 74870830 in words is "seventy-four million, eight hundred seventy thousand, eight hundred thirty".