1089698012 has 12 divisors (see below), whose sum is σ = 2053661736. Its totient is φ = 502937520.

The previous prime is 1089698003. The next prime is 1089698021. The reversal of 1089698012 is 2108969801.

It is an interprime number because it is at equal distance from previous prime (1089698003) and next prime (1089698021).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10477814 + ... + 10477917.

It is an arithmetic number, because the mean of its divisors is an integer number (171138478).

Almost surely, 2^1089698012 is an apocalyptic number.

It is an amenable number.

1089698012 is a deficient number, since it is larger than the sum of its proper divisors (963963724).

1089698012 is a wasteful number, since it uses less digits than its factorization.

1089698012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20955748 (or 20955746 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 1089698012 is about 33010.5742452324. The cubic root of 1089698012 is about 1029.0474153846.

The spelling of 1089698012 in words is "one billion, eighty-nine million, six hundred ninety-eight thousand, twelve".