696947661 has 12 divisors (see below), whose sum is σ = 1010917440. Its totient is φ = 462686280.

The previous prime is 696947609. The next prime is 696947663. The reversal of 696947661 is 166749696.

696947661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 696947661 - 2⁷ = 696947533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 696947598 and 696947607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (696947663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159855 + ... + 164156.

It is an arithmetic number, because the mean of its divisors is an integer number (84243120).

Almost surely, 2^696947661 is an apocalyptic number.

It is an amenable number.

696947661 is a deficient number, since it is larger than the sum of its proper divisors (313969779).

696947661 is a wasteful number, since it uses less digits than its factorization.

696947661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324256 (or 324253 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 696947661 is about 26399.7663057838. The cubic root of 696947661 is about 886.6115575418.

The spelling of 696947661 in words is "six hundred ninety-six million, nine hundred forty-seven thousand, six hundred sixty-one".