1077890685 has 16 divisors (see below), whose sum is σ = 1741703040. Its totient is φ = 569182400.

The previous prime is 1077890669. The next prime is 1077890701. The reversal of 1077890685 is 5860987701.

It is an interprime number because it is at equal distance from previous prime (1077890669) and next prime (1077890701).

It is not a de Polignac number, because 1077890685 - 2⁴ = 1077890669 is a prime.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 354225 + ... + 357254.

It is an arithmetic number, because the mean of its divisors is an integer number (108856440).

Almost surely, 2^1077890685 is an apocalyptic number.

1077890685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1077890685 is a deficient number, since it is larger than the sum of its proper divisors (663812355).

1077890685 is a wasteful number, since it uses less digits than its factorization.

1077890685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711588.

The product of its (nonzero) digits is 846720, while the sum is 51.

The square root of 1077890685 is about 32831.2455596799. The cubic root of 1077890685 is about 1025.3171923345.

The spelling of 1077890685 in words is "one billion, seventy-seven million, eight hundred ninety thousand, six hundred eighty-five".