1690685084 has 18 divisors (see below), whose sum is σ = 3252124512. Its totient is φ = 768493000.

The previous prime is 1690685077. The next prime is 1690685093. The reversal of 1690685084 is 4805860961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1746092 + ... + 1747059.

It is an arithmetic number, because the mean of its divisors is an integer number (180673584).

Almost surely, 2^1690685084 is an apocalyptic number.

It is an amenable number.

1690685084 is a deficient number, since it is larger than the sum of its proper divisors (1561439428).

1690685084 is a wasteful number, since it uses less digits than its factorization.

1690685084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493177 (or 3493164 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 1690685084 is about 41117.9411449552. The cubic root of 1690685084 is about 1191.2993560910.

The spelling of 1690685084 in words is "one billion, six hundred ninety million, six hundred eighty-five thousand, eighty-four".