74990371 has 4 divisors (see below), whose sum is σ = 75102472. Its totient is φ = 74878272.

The previous prime is 74990369. The next prime is 74990381. The reversal of 74990371 is 17309947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17309947 = 131 ⋅132137.

It is a cyclic number.

It is not a de Polignac number, because 74990371 - 2¹ = 74990369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74990381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55041 + ... + 56386.

It is an arithmetic number, because the mean of its divisors is an integer number (18775618).

Almost surely, 2^74990371 is an apocalyptic number.

74990371 is a deficient number, since it is larger than the sum of its proper divisors (112101).

74990371 is a wasteful number, since it uses less digits than its factorization.

74990371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112100.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 74990371 is about 8659.6980894255. The cubic root of 74990371 is about 421.6982842937.

The spelling of 74990371 in words is "seventy-four million, nine hundred ninety thousand, three hundred seventy-one".