4891538 has 4 divisors (see below), whose sum is σ = 7337310. Its totient is φ = 2445768.

The previous prime is 4891519. The next prime is 4891547. The reversal of 4891538 is 8351984.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3621409 + 1270129 = 1903^2 + 1127^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222883 + ... + 1222886.

Almost surely, 2^4891538 is an apocalyptic number.

4891538 is a deficient number, since it is larger than the sum of its proper divisors (2445772).

4891538 is a wasteful number, since it uses less digits than its factorization.

4891538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445771.

The product of its digits is 34560, while the sum is 38.

The square root of 4891538 is about 2211.6821652308. The cubic root of 4891538 is about 169.7520954132.

The spelling of 4891538 in words is "four million, eight hundred ninety-one thousand, five hundred thirty-eight".