987593478 has 32 divisors (see below), whose sum is σ = 2103096960. Its totient is φ = 308096640.

The previous prime is 987593449. The next prime is 987593479. The reversal of 987593478 is 874395789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987593479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8788 + ... + 45303.

It is an arithmetic number, because the mean of its divisors is an integer number (65721780).

Almost surely, 2^987593478 is an apocalyptic number.

987593478 is an abundant number, since it is smaller than the sum of its proper divisors (1115503482).

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

987593478 is a wasteful number, since it uses less digits than its factorization.

987593478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54292.

The product of its digits is 15240960, while the sum is 60.

The square root of 987593478 is about 31426.0000318208. Note that the first 4 decimals coincide. The cubic root of 987593478 is about 995.8472713832.

The spelling of 987593478 in words is "nine hundred eighty-seven million, five hundred ninety-three thousand, four hundred seventy-eight".