4891492 has 12 divisors (see below), whose sum is σ = 8615740. Its totient is φ = 2429856.

The previous prime is 4891489. The next prime is 4891499. The reversal of 4891492 is 2941984.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2149156 + 2742336 = 1466^2 + 1656^2 .

It is not an unprimeable number, because it can be changed into a prime (4891499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3267 + ... + 4522.

Almost surely, 2^4891492 is an apocalyptic number.

It is an amenable number.

4891492 is a deficient number, since it is larger than the sum of its proper divisors (3724248).

4891492 is a wasteful number, since it uses less digits than its factorization.

4891492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950 (or 7948 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 4891492 is about 2211.6717658821. The cubic root of 4891492 is about 169.7515632956.

The spelling of 4891492 in words is "four million, eight hundred ninety-one thousand, four hundred ninety-two".