696117949 has 2 divisors, whose sum is σ = 696117950. Its totient is φ = 696117948.

The previous prime is 696117941. The next prime is 696117959. The reversal of 696117949 is 949711696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 691321849 + 4796100 = 26293^2 + 2190^2 .

It is a cyclic number.

It is not a de Polignac number, because 696117949 - 2³ = 696117941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 696117896 and 696117905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (696117941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348058974 + 348058975.

It is an arithmetic number, because the mean of its divisors is an integer number (348058975).

Almost surely, 2^696117949 is an apocalyptic number.

It is an amenable number.

696117949 is a deficient number, since it is larger than the sum of its proper divisors (1).

696117949 is an equidigital number, since it uses as much as digits as its factorization.

696117949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 52.

The square root of 696117949 is about 26384.0472444998. The cubic root of 696117949 is about 886.2595825873.

The spelling of 696117949 in words is "six hundred ninety-six million, one hundred seventeen thousand, nine hundred forty-nine".