4991574 has 32 divisors (see below), whose sum is σ = 12082176. Its totient is φ = 1342080.

The previous prime is 4991573. The next prime is 4991587. The reversal of 4991574 is 4751994.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2782 + ... + 4209.

It is an arithmetic number, because the mean of its divisors is an integer number (377568).

Almost surely, 2^4991574 is an apocalyptic number.

4991574 is an abundant number, since it is smaller than the sum of its proper divisors (7090602).

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

4991574 is a wasteful number, since it uses less digits than its factorization.

4991574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7020.

The product of its digits is 45360, while the sum is 39.

The square root of 4991574 is about 2234.1830721765. The cubic root of 4991574 is about 170.9014856109.

It can be divided in two parts, 4991 and 574, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 4991574 in words is "four million, nine hundred ninety-one thousand, five hundred seventy-four".