4990815 has 20 divisors (see below), whose sum is σ = 8947224. Its totient is φ = 2661552.

The previous prime is 4990781. The next prime is 4990823. The reversal of 4990815 is 5180994.

It is not a de Polignac number, because 4990815 - 2⁹ = 4990303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4990815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5757 + ... + 6566.

Almost surely, 2^4990815 is an apocalyptic number.

4990815 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4990815 is a deficient number, since it is larger than the sum of its proper divisors (3956409).

4990815 is a wasteful number, since it uses less digits than its factorization.

4990815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12340 (or 12331 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 4990815 is about 2234.0132049744. The cubic root of 4990815 is about 170.8928229591.

The spelling of 4990815 in words is "four million, nine hundred ninety thousand, eight hundred fifteen".