4891436 has 24 divisors (see below), whose sum is σ = 9831360. Its totient is φ = 2106000.

The previous prime is 4891429. The next prime is 4891457. The reversal of 4891436 is 6341984.

It is a super-2 number, since 2×4891436² = 47852292284192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4891396 and 4891405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2090 + ... + 3761.

It is an arithmetic number, because the mean of its divisors is an integer number (409640).

Almost surely, 2^4891436 is an apocalyptic number.

It is an amenable number.

4891436 is an abundant number, since it is smaller than the sum of its proper divisors (4939924).

4891436 is a wasteful number, since it uses less digits than its factorization.

4891436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885 (or 5883 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 4891436 is about 2211.6591057394. The cubic root of 4891436 is about 169.7509154957.

The spelling of 4891436 in words is "four million, eight hundred ninety-one thousand, four hundred thirty-six".