1087894634 has 16 divisors (see below), whose sum is σ = 1744945416. Its totient is φ = 506880000.

The previous prime is 1087894627. The next prime is 1087894637. The reversal of 1087894634 is 4364987801.

It can be written as a sum of positive squares in 4 ways, for example, as 1030089025 + 57805609 = 32095^2 + 7603^2 .

It is not an unprimeable number, because it can be changed into a prime (1087894637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154967 + ... + 161834.

Almost surely, 2^1087894634 is an apocalyptic number.

1087894634 is a deficient number, since it is larger than the sum of its proper divisors (657050782).

1087894634 is a wasteful number, since it uses less digits than its factorization.

1087894634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316921.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 1087894634 is about 32983.2477782283. The cubic root of 1087894634 is about 1028.4794335179.

The spelling of 1087894634 in words is "one billion, eighty-seven million, eight hundred ninety-four thousand, six hundred thirty-four".