1028677859 has 8 divisors (see below), whose sum is σ = 1122517440. Its totient is φ = 934892200.

The previous prime is 1028677817. The next prime is 1028677883. The reversal of 1028677859 is 9587768201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1028677859 - 2⁸ = 1028677603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1028677859.

It is not an unprimeable number, because it can be changed into a prime (1028677889) 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, 33572 + ... + 56430.

It is an arithmetic number, because the mean of its divisors is an integer number (140314680).

Almost surely, 2^1028677859 is an apocalyptic number.

1028677859 is a deficient number, since it is larger than the sum of its proper divisors (93839581).

1028677859 is a wasteful number, since it uses less digits than its factorization.

1028677859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26961.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The square root of 1028677859 is about 32073.0082624003. The cubic root of 1028677859 is about 1009.4693349950.

The spelling of 1028677859 in words is "one billion, twenty-eight million, six hundred seventy-seven thousand, eight hundred fifty-nine".