1087428375 has 128 divisors (see below), whose sum is σ = 2323676160. Its totient is φ = 495936000.

The previous prime is 1087428343. The next prime is 1087428383. The reversal of 1087428375 is 5738247801.

It is not a de Polignac number, because 1087428375 - 2⁵ = 1087428343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1087428375.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 630264 + ... + 631986.

It is an arithmetic number, because the mean of its divisors is an integer number (18153720).

Almost surely, 2^1087428375 is an apocalyptic number.

1087428375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1087428375 is an abundant number, since it is smaller than the sum of its proper divisors (1236247785).

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

1087428375 is a wasteful number, since it uses less digits than its factorization.

1087428375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775 (or 1759 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 1087428375 is about 32976.1789023531. The cubic root of 1087428375 is about 1028.3324810767.

The spelling of 1087428375 in words is "one billion, eighty-seven million, four hundred twenty-eight thousand, three hundred seventy-five".