263697 has 16 divisors (see below), whose sum is σ = 416640. Its totient is φ = 145152.

The previous prime is 263677. The next prime is 263723. The reversal of 263697 is 796362.

It is not a de Polignac number, because 263697 - 2¹⁵ = 230929 is a prime.

It is a super-2 number, since 2×263697² = 139072215618, which contains 22 as substring.

263697 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (263647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393 + ... + 825.

It is an arithmetic number, because the mean of its divisors is an integer number (26040).

2²⁶³⁶⁹⁷ is an apocalyptic number.

It is an amenable number.

263697 is a deficient number, since it is larger than the sum of its proper divisors (152943).

263697 is a wasteful number, since it uses less digits than its factorization.

263697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

The product of its digits is 13608, while the sum is 33.

The square root of 263697 is about 513.5143620192. The cubic root of 263697 is about 64.1261347070.

The spelling of 263697 in words is "two hundred sixty-three thousand, six hundred ninety-seven".