1028899696 has 20 divisors (see below), whose sum is σ = 2174720184. Its totient is φ = 467681600.

The previous prime is 1028899667. The next prime is 1028899709. The reversal of 1028899696 is 6969988201.

It is a self number, because there is not a number n which added to its sum of digits gives 1028899696.

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, 2922835 + ... + 2923186.

Almost surely, 2^1028899696 is an apocalyptic number.

1028899696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1028899696 is an abundant number, since it is smaller than the sum of its proper divisors (1145820488).

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

1028899696 is a wasteful number, since it uses less digits than its factorization.

1028899696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5846040 (or 5846034 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 58.

The square root of 1028899696 is about 32076.4663889276. The cubic root of 1028899696 is about 1009.5418946570.

The spelling of 1028899696 in words is "one billion, twenty-eight million, eight hundred ninety-nine thousand, six hundred ninety-six".