1697818132 has 12 divisors (see below), whose sum is σ = 2980000660. Its totient is φ = 846389376.

The previous prime is 1697818091. The next prime is 1697818139. The reversal of 1697818132 is 2318187961.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1256986116 + 440832016 = 35454^2 + 20996^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1697818139) 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 3 ways as a sum of consecutive naturals, for example, 628407 + ... + 631102.

Almost surely, 2^1697818132 is an apocalyptic number.

It is an amenable number.

1697818132 is a deficient number, since it is larger than the sum of its proper divisors (1282182528).

1697818132 is a wasteful number, since it uses less digits than its factorization.

1697818132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259850 (or 1259848 counting only the distinct ones).

The product of its digits is 145152, while the sum is 46.

The square root of 1697818132 is about 41204.5887250437. The cubic root of 1697818132 is about 1192.9723806281.

The spelling of 1697818132 in words is "one billion, six hundred ninety-seven million, eight hundred eighteen thousand, one hundred thirty-two".