263342497 has 8 divisors (see below), whose sum is σ = 288025920. Its totient is φ = 238782960.

The previous prime is 263342477. The next prime is 263342509. The reversal of 263342497 is 794243362.

263342497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 263342497 - 2⁷ = 263342369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263342447) 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, 26493 + ... + 35050.

It is an arithmetic number, because the mean of its divisors is an integer number (36003240).

Almost surely, 2^263342497 is an apocalyptic number.

It is an amenable number.

263342497 is a deficient number, since it is larger than the sum of its proper divisors (24683423).

263342497 is a wasteful number, since it uses less digits than its factorization.

263342497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61943.

The product of its digits is 217728, while the sum is 40.

The square root of 263342497 is about 16227.8309394694. The cubic root of 263342497 is about 640.9738567336.

The spelling of 263342497 in words is "two hundred sixty-three million, three hundred forty-two thousand, four hundred ninety-seven".