4638998 has 32 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 1804320.

The previous prime is 4638979. The next prime is 4639003. The reversal of 4638998 is 8998364.

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, 12743 + ... + 13101.

It is an arithmetic number, because the mean of its divisors is an integer number (272160).

Almost surely, 2^4638998 is an apocalyptic number.

4638998 is a deficient number, since it is larger than the sum of its proper divisors (4070122).

4638998 is a wasteful number, since it uses less digits than its factorization.

4638998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452.

The product of its digits is 373248, while the sum is 47.

The square root of 4638998 is about 2153.8333268849. The cubic root of 4638998 is about 166.7790113661.

The spelling of 4638998 in words is "four million, six hundred thirty-eight thousand, nine hundred ninety-eight".