1696867394 has 8 divisors (see below), whose sum is σ = 2554359948. Its totient is φ = 845414080.

The previous prime is 1696867373. The next prime is 1696867421. The reversal of 1696867394 is 4937686961.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1679934169 + 16933225 = 40987^2 + 4115^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509107 + ... + 1510230.

Almost surely, 2^1696867394 is an apocalyptic number.

1696867394 is a deficient number, since it is larger than the sum of its proper divisors (857492554).

1696867394 is a wasteful number, since it uses less digits than its factorization.

1696867394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019620.

The product of its digits is 11757312, while the sum is 59.

The square root of 1696867394 is about 41193.0503119155. The cubic root of 1696867394 is about 1192.7496602773.

The spelling of 1696867394 in words is "one billion, six hundred ninety-six million, eight hundred sixty-seven thousand, three hundred ninety-four".