1696401647 has 4 divisors (see below), whose sum is σ = 1712255976. Its totient is φ = 1680547320.

The previous prime is 1696401631. The next prime is 1696401653. The reversal of 1696401647 is 7461046961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1696401647 - 2⁴ = 1696401631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1696401598 and 1696401607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1696401697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7927004 + ... + 7927217.

It is an arithmetic number, because the mean of its divisors is an integer number (428063994).

Almost surely, 2^1696401647 is an apocalyptic number.

1696401647 is a deficient number, since it is larger than the sum of its proper divisors (15854329).

1696401647 is a wasteful number, since it uses less digits than its factorization.

1696401647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15854328.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 1696401647 is about 41187.3967009327. The cubic root of 1696401647 is about 1192.6405237961.

The spelling of 1696401647 in words is "one billion, six hundred ninety-six million, four hundred one thousand, six hundred forty-seven".