988630 has 16 divisors (see below), whose sum is σ = 1797840. Its totient is φ = 391392.

The previous prime is 988607. The next prime is 988643. The reversal of 988630 is 36889.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

988630 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637 + ... + 1543.

It is an arithmetic number, because the mean of its divisors is an integer number (112365).

2⁹⁸⁸⁶³⁰ is an apocalyptic number.

988630 is a deficient number, since it is larger than the sum of its proper divisors (809210).

988630 is a wasteful number, since it uses less digits than its factorization.

988630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 988630 is about 994.2987478620. The cubic root of 988630 is about 99.6195544473.

The spelling of 988630 in words is "nine hundred eighty-eight thousand, six hundred thirty".