1670692887 has 12 divisors (see below), whose sum is σ = 2472082704. Its totient is φ = 1086629280.

The previous prime is 1670692843. The next prime is 1670692913. The reversal of 1670692887 is 7882960761.

It is not a de Polignac number, because 1670692887 - 2¹⁵ = 1670660119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670692817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2263443 + ... + 2264180.

It is an arithmetic number, because the mean of its divisors is an integer number (206006892).

Almost surely, 2^1670692887 is an apocalyptic number.

1670692887 is a deficient number, since it is larger than the sum of its proper divisors (801389817).

1670692887 is a wasteful number, since it uses less digits than its factorization.

1670692887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4527670 (or 4527667 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 1670692887 is about 40874.1102288478. The cubic root of 1670692887 is about 1186.5850561520.

The spelling of 1670692887 in words is "one billion, six hundred seventy million, six hundred ninety-two thousand, eight hundred eighty-seven".