263740743 has 24 divisors (see below), whose sum is σ = 441886848. Its totient is φ = 148457232.

The previous prime is 263740739. The next prime is 263740783. The reversal of 263740743 is 347047362.

It is a happy number.

It is not a de Polignac number, because 263740743 - 2² = 263740739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263740698 and 263740707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263740783) 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 23 ways as a sum of consecutive naturals, for example, 27021 + ... + 35462.

It is an arithmetic number, because the mean of its divisors is an integer number (18411952).

Almost surely, 2^263740743 is an apocalyptic number.

263740743 is a deficient number, since it is larger than the sum of its proper divisors (178146105).

263740743 is a wasteful number, since it uses less digits than its factorization.

263740743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62563 (or 62560 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

The square root of 263740743 is about 16240.0967669531. The cubic root of 263740743 is about 641.2968033506.

The spelling of 263740743 in words is "two hundred sixty-three million, seven hundred forty thousand, seven hundred forty-three".