696219973 has 2 divisors, whose sum is σ = 696219974. Its totient is φ = 696219972.

The previous prime is 696219971. The next prime is 696219991. The reversal of 696219973 is 379912696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384238404 + 311981569 = 19602^2 + 17663^2 .

It is a cyclic number.

It is not a de Polignac number, because 696219973 - 2¹ = 696219971 is a prime.

Together with 696219971, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 696219973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (696219971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348109986 + 348109987.

It is an arithmetic number, because the mean of its divisors is an integer number (348109987).

Almost surely, 2^696219973 is an apocalyptic number.

It is an amenable number.

696219973 is a deficient number, since it is larger than the sum of its proper divisors (1).

696219973 is an equidigital number, since it uses as much as digits as its factorization.

696219973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 52.

The square root of 696219973 is about 26385.9806147128. The cubic root of 696219973 is about 886.3028776117.

The spelling of 696219973 in words is "six hundred ninety-six million, two hundred nineteen thousand, nine hundred seventy-three".