1002079858 has 16 divisors (see below), whose sum is σ = 1713965400. Its totient is φ = 435292416.

The previous prime is 1002079831. The next prime is 1002079919. The reversal of 1002079858 is 8589702001.

It can be written as a sum of positive squares in 4 ways, for example, as 892396129 + 109683729 = 29873^2 + 10473^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1002079858.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133133 + ... + 1134016.

Almost surely, 2^1002079858 is an apocalyptic number.

1002079858 is a deficient number, since it is larger than the sum of its proper divisors (711885542).

1002079858 is a wasteful number, since it uses less digits than its factorization.

1002079858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267181.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 1002079858 is about 31655.6449626287. The cubic root of 1002079858 is about 1000.6928059091.

The spelling of 1002079858 in words is "one billion, two million, seventy-nine thousand, eight hundred fifty-eight".