987951320 has 32 divisors (see below), whose sum is σ = 2234545920. Its totient is φ = 393108480.

The previous prime is 987951281. The next prime is 987951329. The reversal of 987951320 is 23159789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987951329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57017 + ... + 72296.

It is an arithmetic number, because the mean of its divisors is an integer number (69829560).

Almost surely, 2^987951320 is an apocalyptic number.

It is an amenable number.

987951320 is an abundant number, since it is smaller than the sum of its proper divisors (1246594600).

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

987951320 is a wasteful number, since it uses less digits than its factorization.

987951320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129515 (or 129511 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 987951320 is about 31431.6929229082. The cubic root of 987951320 is about 995.9675344116.

The spelling of 987951320 in words is "nine hundred eighty-seven million, nine hundred fifty-one thousand, three hundred twenty".