4979990 has 8 divisors (see below), whose sum is σ = 8964000. Its totient is φ = 1991992.

The previous prime is 4979977. The next prime is 4979993. The reversal of 4979990 is 999794.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4979993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248990 + ... + 249009.

It is an arithmetic number, because the mean of its divisors is an integer number (1120500).

Almost surely, 2^4979990 is an apocalyptic number.

4979990 is a deficient number, since it is larger than the sum of its proper divisors (3984010).

4979990 is a wasteful number, since it uses less digits than its factorization.

4979990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498006.

The product of its (nonzero) digits is 183708, while the sum is 47.

The square root of 4979990 is about 2231.5891198874. The cubic root of 4979990 is about 170.7691788982.

The spelling of 4979990 in words is "four million, nine hundred seventy-nine thousand, nine hundred ninety".