263364013 has 4 divisors (see below), whose sum is σ = 287306208. Its totient is φ = 239421820.

The previous prime is 263364001. The next prime is 263364019. The reversal of 263364013 is 310463362.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 263364013 - 2¹³ = 263355821 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 (263364019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11971081 + ... + 11971102.

It is an arithmetic number, because the mean of its divisors is an integer number (71826552).

Almost surely, 2^263364013 is an apocalyptic number.

It is an amenable number.

263364013 is a deficient number, since it is larger than the sum of its proper divisors (23942195).

263364013 is a wasteful number, since it uses less digits than its factorization.

263364013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23942194.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 263364013 is about 16228.4938611074. The cubic root of 263364013 is about 640.9913128577.

The spelling of 263364013 in words is "two hundred sixty-three million, three hundred sixty-four thousand, thirteen".