696217961 has 4 divisors (see below), whose sum is σ = 696308052. Its totient is φ = 696127872.

The previous prime is 696217943. The next prime is 696217997. The reversal of 696217961 is 169712696.

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

It can be written as a sum of positive squares in 2 ways, for example, as 545689600 + 150528361 = 23360^2 + 12269^2 .

It is a cyclic number.

It is not a de Polignac number, because 696217961 - 2¹⁴ = 696201577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (696210961) 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, 32240 + ... + 49313.

It is an arithmetic number, because the mean of its divisors is an integer number (174077013).

Almost surely, 2^696217961 is an apocalyptic number.

It is an amenable number.

696217961 is a deficient number, since it is larger than the sum of its proper divisors (90091).

696217961 is an equidigital number, since it uses as much as digits as its factorization.

696217961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90090.

The product of its digits is 244944, while the sum is 47.

The square root of 696217961 is about 26385.9424883782. The cubic root of 696217961 is about 886.3020238379.

The spelling of 696217961 in words is "six hundred ninety-six million, two hundred seventeen thousand, nine hundred sixty-one".