987630 has 32 divisors (see below), whose sum is σ = 2709504. Its totient is φ = 225696.

The previous prime is 987607. The next prime is 987631. The reversal of 987630 is 36789.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 987591 and 987600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987631) by changing a digit.

987630 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 15 ways as a sum of consecutive naturals, for example, 2142 + ... + 2561.

It is an arithmetic number, because the mean of its divisors is an integer number (84672).

2⁹⁸⁷⁶³⁰ is an apocalyptic number.

987630 is an abundant number, since it is smaller than the sum of its proper divisors (1721874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

987630 is a wasteful number, since it uses less digits than its factorization.

987630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4720.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 987630 is about 993.7957536637. The cubic root of 987630 is about 99.5859546976.

The spelling of 987630 in words is "nine hundred eighty-seven thousand, six hundred thirty".