1690094085 has 8 divisors (see below), whose sum is σ = 2704150560. Its totient is φ = 901383504.

The previous prime is 1690093963. The next prime is 1690094093. The reversal of 1690094085 is 5804900961.

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

It is not a de Polignac number, because 1690094085 - 2⁷ = 1690093957 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56336455 + ... + 56336484.

It is an arithmetic number, because the mean of its divisors is an integer number (338018820).

Almost surely, 2^1690094085 is an apocalyptic number.

1690094085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1690094085 is a deficient number, since it is larger than the sum of its proper divisors (1014056475).

1690094085 is a wasteful number, since it uses less digits than its factorization.

1690094085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112672947.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1690094085 is about 41110.7538850846. The cubic root of 1690094085 is about 1191.1605289793.

The spelling of 1690094085 in words is "one billion, six hundred ninety million, ninety-four thousand, eighty-five".