988634 has 4 divisors (see below), whose sum is σ = 1482954. Its totient is φ = 494316.

The previous prime is 988607. The next prime is 988643. The reversal of 988634 is 436889.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 570025 + 418609 = 755^2 + 647^2 .

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247157 + ... + 247160.

2⁹⁸⁸⁶³⁴ is an apocalyptic number.

988634 is a deficient number, since it is larger than the sum of its proper divisors (494320).

988634 is a wasteful number, since it uses less digits than its factorization.

988634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494319.

The product of its digits is 41472, while the sum is 38.

The square root of 988634 is about 994.3007593279. The cubic root of 988634 is about 99.6196888008.

The spelling of 988634 in words is "nine hundred eighty-eight thousand, six hundred thirty-four".