74870890 has 32 divisors (see below), whose sum is σ = 147308544. Its totient is φ = 27275520.

The previous prime is 74870843. The next prime is 74870899. The reversal of 74870890 is 9807847.

It is not an unprimeable number, because it can be changed into a prime (74870899) by changing a digit.

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, 1834 + ... + 12373.

It is an arithmetic number, because the mean of its divisors is an integer number (4603392).

Almost surely, 2^74870890 is an apocalyptic number.

74870890 is a deficient number, since it is larger than the sum of its proper divisors (72437654).

74870890 is a wasteful number, since it uses less digits than its factorization.

74870890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14262.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 74870890 is about 8652.7966577286. The cubic root of 74870890 is about 421.4742034554.

The spelling of 74870890 in words is "seventy-four million, eight hundred seventy thousand, eight hundred ninety".