263441197 has 8 divisors (see below), whose sum is σ = 280099512. Its totient is φ = 246912000.

The previous prime is 263441183. The next prime is 263441203. The reversal of 263441197 is 791144362.

It can be written as a sum of positive squares in 4 ways, for example, as 82646281 + 180794916 = 9091^2 + 13446^2 .

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 263441197 - 2¹⁵ = 263408429 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 (263441117) 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, 28054 + ... + 36247.

It is an arithmetic number, because the mean of its divisors is an integer number (35012439).

Almost surely, 2^263441197 is an apocalyptic number.

It is an amenable number.

263441197 is a deficient number, since it is larger than the sum of its proper divisors (16658315).

263441197 is a wasteful number, since it uses less digits than its factorization.

263441197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64559.

The product of its digits is 36288, while the sum is 37.

The square root of 263441197 is about 16230.8717264354. The cubic root of 263441197 is about 641.0539251088.

The spelling of 263441197 in words is "two hundred sixty-three million, four hundred forty-one thousand, one hundred ninety-seven".