1087790670 has 48 divisors (see below), whose sum is σ = 2876206320. Its totient is φ = 285159552.

The previous prime is 1087790657. The next prime is 1087790723. The reversal of 1087790670 is 760977801.

It is a happy number.

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

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, 97119 + ... + 107738.

It is an arithmetic number, because the mean of its divisors is an integer number (59920965).

Almost surely, 2^1087790670 is an apocalyptic number.

1087790670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1087790670 is an abundant number, since it is smaller than the sum of its proper divisors (1788415650).

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

1087790670 is a wasteful number, since it uses less digits than its factorization.

1087790670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204929 (or 204926 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 45.

The square root of 1087790670 is about 32981.6717284009. The cubic root of 1087790670 is about 1028.4466704669.

The spelling of 1087790670 in words is "one billion, eighty-seven million, seven hundred ninety thousand, six hundred seventy".