4991088 has 20 divisors (see below), whose sum is σ = 12893768. Its totient is φ = 1663680.

The previous prime is 4991033. The next prime is 4991101. The reversal of 4991088 is 8801994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51943 + ... + 52038.

Almost surely, 2^4991088 is an apocalyptic number.

4991088 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4991088 is an abundant number, since it is smaller than the sum of its proper divisors (7902680).

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

4991088 is a wasteful number, since it uses less digits than its factorization.

4991088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103992 (or 103986 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 4991088 is about 2234.0743049415. The cubic root of 4991088 is about 170.8959388757.

The spelling of 4991088 in words is "four million, nine hundred ninety-one thousand, eighty-eight".