1690796312 has 8 divisors (see below), whose sum is σ = 3170243100. Its totient is φ = 845398152.

The previous prime is 1690796311. The next prime is 1690796351. The reversal of 1690796312 is 2136970961.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690796311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105674762 + ... + 105674777.

Almost surely, 2^1690796312 is an apocalyptic number.

It is an amenable number.

1690796312 is a deficient number, since it is larger than the sum of its proper divisors (1479446788).

1690796312 is a wasteful number, since it uses less digits than its factorization.

1690796312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211349545 (or 211349541 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 1690796312 is about 41119.2936709764. The cubic root of 1690796312 is about 1191.3254802030.

The spelling of 1690796312 in words is "one billion, six hundred ninety million, seven hundred ninety-six thousand, three hundred twelve".