4991576 has 8 divisors (see below), whose sum is σ = 9359220. Its totient is φ = 2495784.

The previous prime is 4991573. The next prime is 4991587. The reversal of 4991576 is 6751994.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311966 + ... + 311981.

Almost surely, 2^4991576 is an apocalyptic number.

It is an amenable number.

4991576 is a deficient number, since it is larger than the sum of its proper divisors (4367644).

4991576 is a wasteful number, since it uses less digits than its factorization.

4991576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623953 (or 623949 counting only the distinct ones).

The product of its digits is 68040, while the sum is 41.

The square root of 4991576 is about 2234.1835197673. The cubic root of 4991576 is about 170.9015084363.

The spelling of 4991576 in words is "four million, nine hundred ninety-one thousand, five hundred seventy-six".