1087631378 has 16 divisors (see below), whose sum is σ = 1642200000. Its totient is φ = 540242352.

The previous prime is 1087631357. The next prime is 1087631431. The reversal of 1087631378 is 8731367801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226163 + ... + 230921.

It is an arithmetic number, because the mean of its divisors is an integer number (102637500).

Almost surely, 2^1087631378 is an apocalyptic number.

1087631378 is a deficient number, since it is larger than the sum of its proper divisors (554568622).

1087631378 is a wasteful number, since it uses less digits than its factorization.

1087631378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5489.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 1087631378 is about 32979.2567836208. The cubic root of 1087631378 is about 1028.3964673875.

The spelling of 1087631378 in words is "one billion, eighty-seven million, six hundred thirty-one thousand, three hundred seventy-eight".