697787423 has 8 divisors (see below), whose sum is σ = 739121760. Its totient is φ = 656485120.

The previous prime is 697787393. The next prime is 697787437. The reversal of 697787423 is 324787796.

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 697787423 - 2¹⁰ = 697786399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697781423) 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, 48158 + ... + 60948.

It is an arithmetic number, because the mean of its divisors is an integer number (92390220).

Almost surely, 2^697787423 is an apocalyptic number.

697787423 is a deficient number, since it is larger than the sum of its proper divisors (41334337).

697787423 is a wasteful number, since it uses less digits than its factorization.

697787423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16017.

The product of its digits is 3556224, while the sum is 53.

The square root of 697787423 is about 26415.6662418346. Note that the first 3 decimals coincide. The cubic root of 697787423 is about 886.9675115107.

The spelling of 697787423 in words is "six hundred ninety-seven million, seven hundred eighty-seven thousand, four hundred twenty-three".