1087864974 has 48 divisors (see below), whose sum is σ = 2748751200. Its totient is φ = 310816800.

The previous prime is 1087864957. The next prime is 1087865021. The reversal of 1087864974 is 4794687801.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1087864974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81927 + ... + 94274.

It is an arithmetic number, because the mean of its divisors is an integer number (57265650).

Almost surely, 2^1087864974 is an apocalyptic number.

1087864974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1087864974 is an abundant number, since it is smaller than the sum of its proper divisors (1660886226).

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

1087864974 is a wasteful number, since it uses less digits than its factorization.

1087864974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176230 (or 176213 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 1087864974 is about 32982.7981529767. The cubic root of 1087864974 is about 1028.4700867251.

The spelling of 1087864974 in words is "one billion, eighty-seven million, eight hundred sixty-four thousand, nine hundred seventy-four".