4891956 has 48 divisors (see below), whose sum is σ = 11957568. Its totient is φ = 1555200.

The previous prime is 4891927. The next prime is 4891961. The reversal of 4891956 is 6591984.

Its product of digits (77760) is a multiple of the sum of its prime divisors (270).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29931 + ... + 30093.

It is an arithmetic number, because the mean of its divisors is an integer number (249116).

Almost surely, 2^4891956 is an apocalyptic number.

It is an amenable number.

4891956 is an abundant number, since it is smaller than the sum of its proper divisors (7065612).

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

4891956 is a wasteful number, since it uses less digits than its factorization.

4891956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 270 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 4891956 is about 2211.7766614195. The cubic root of 4891956 is about 169.7569305901.

It can be divided in two parts, 489 and 1956, that multiplied together give a square (956484 = 978²).

The spelling of 4891956 in words is "four million, eight hundred ninety-one thousand, nine hundred fifty-six".