523401697 has 16 divisors (see below), whose sum is σ = 644918400. Its totient is φ = 413649792.

The previous prime is 523401689. The next prime is 523401727. The reversal of 523401697 is 796104325.

It is a cyclic number.

It is not a de Polignac number, because 523401697 - 2³ = 523401689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (523401097) 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 in 15 ways as a sum of consecutive naturals, for example, 92718 + ... + 98200.

It is an arithmetic number, because the mean of its divisors is an integer number (40307400).

Almost surely, 2^523401697 is an apocalyptic number.

It is an amenable number.

523401697 is a deficient number, since it is larger than the sum of its proper divisors (121516703).

523401697 is a wasteful number, since it uses less digits than its factorization.

523401697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 523401697 is about 22877.9740580323. The cubic root of 523401697 is about 805.8948407322.

The spelling of 523401697 in words is "five hundred twenty-three million, four hundred one thousand, six hundred ninety-seven".