697942253 has 8 divisors (see below), whose sum is σ = 703916472. Its totient is φ = 691981056.

The previous prime is 697942249. The next prime is 697942279. The reversal of 697942253 is 352249796.

697942253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 25421764 + 672520489 = 5042^2 + 25933^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 697942253 - 2² = 697942249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 697942198 and 697942207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697942243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125651 + ... + 131087.

It is an arithmetic number, because the mean of its divisors is an integer number (87989559).

Almost surely, 2^697942253 is an apocalyptic number.

It is an amenable number.

697942253 is a deficient number, since it is larger than the sum of its proper divisors (5974219).

697942253 is a wasteful number, since it uses less digits than its factorization.

697942253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6511.

The product of its digits is 816480, while the sum is 47.

The square root of 697942253 is about 26418.5967265485. The cubic root of 697942253 is about 887.0331088638.

The spelling of 697942253 in words is "six hundred ninety-seven million, nine hundred forty-two thousand, two hundred fifty-three".