1028735613 has 8 divisors (see below), whose sum is σ = 1524052800. Its totient is φ = 685823724.

The previous prime is 1028735597. The next prime is 1028735657. The reversal of 1028735613 is 3165378201.

1028735613 is a `hidden beast` number, since 1 + 0 + 2 + 8 + 7 + 35 + 613 = 666.

It is not a de Polignac number, because 1028735613 - 2⁴ = 1028735597 is a prime.

It is a super-2 number, since 2×1028735613² = 2116593922908971538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028735663) 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, 19050633 + ... + 19050686.

It is an arithmetic number, because the mean of its divisors is an integer number (190506600).

Almost surely, 2^1028735613 is an apocalyptic number.

It is an amenable number.

1028735613 is a deficient number, since it is larger than the sum of its proper divisors (495317187).

1028735613 is an equidigital number, since it uses as much as digits as its factorization.

1028735613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38101328 (or 38101322 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1028735613 is about 32073.9086018527. The cubic root of 1028735613 is about 1009.4882264942.

The spelling of 1028735613 in words is "one billion, twenty-eight million, seven hundred thirty-five thousand, six hundred thirteen".