1087231634 has 16 divisors (see below), whose sum is σ = 1786325400. Its totient is φ = 493995264.

The previous prime is 1087231577. The next prime is 1087231637. The reversal of 1087231634 is 4361327801.

It can be written as a sum of positive squares in 4 ways, for example, as 1063738225 + 23493409 = 32615^2 + 4847^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1087231594 and 1087231603.

It is not an unprimeable number, because it can be changed into a prime (1087231637) 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, 550349 + ... + 552320.

Almost surely, 2^1087231634 is an apocalyptic number.

1087231634 is a deficient number, since it is larger than the sum of its proper divisors (699093766).

1087231634 is a wasteful number, since it uses less digits than its factorization.

1087231634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102717.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1087231634 is about 32973.1956898327. The cubic root of 1087231634 is about 1028.2704609420.

The spelling of 1087231634 in words is "one billion, eighty-seven million, two hundred thirty-one thousand, six hundred thirty-four".