4891761 has 12 divisors (see below), whose sum is σ = 8075392. Its totient is φ = 2795256.

The previous prime is 4891729. The next prime is 4891763. The reversal of 4891761 is 1671984.

4891761 is a `hidden beast` number, since 489 + 176 + 1 = 666.

It is not a de Polignac number, because 4891761 - 2⁵ = 4891729 is a prime.

It is a super-2 number, since 2×4891761² = 47858651362242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4891763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38761 + ... + 38886.

Almost surely, 2^4891761 is an apocalyptic number.

It is an amenable number.

4891761 is a deficient number, since it is larger than the sum of its proper divisors (3183631).

4891761 is a wasteful number, since it uses less digits than its factorization.

4891761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77660 (or 77657 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 4891761 is about 2211.7325787717. The cubic root of 4891761 is about 169.7546749797.

It can be divided in two parts, 48 and 91761, that added together give a square (91809 = 303²).

The spelling of 4891761 in words is "four million, eight hundred ninety-one thousand, seven hundred sixty-one".