696172973 has 2 divisors, whose sum is σ = 696172974. Its totient is φ = 696172972.

The previous prime is 696172957. The next prime is 696172987. The reversal of 696172973 is 379271696.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357134404 + 339038569 = 18898^2 + 18413^2 .

It is a cyclic number.

It is not a de Polignac number, because 696172973 - 2⁴ = 696172957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (696172903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348086486 + 348086487.

It is an arithmetic number, because the mean of its divisors is an integer number (348086487).

Almost surely, 2^696172973 is an apocalyptic number.

It is an amenable number.

696172973 is a deficient number, since it is larger than the sum of its proper divisors (1).

696172973 is an equidigital number, since it uses as much as digits as its factorization.

696172973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 50.

The square root of 696172973 is about 26385.0899752114. The cubic root of 696172973 is about 886.2829331620.

The spelling of 696172973 in words is "six hundred ninety-six million, one hundred seventy-two thousand, nine hundred seventy-three".