713752781 has 4 divisors (see below), whose sum is σ = 815717472. Its totient is φ = 611788092.

The previous prime is 713752777. The next prime is 713752783. The reversal of 713752781 is 187257317.

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 a cyclic number.

It is not a de Polignac number, because 713752781 - 2² = 713752777 is a prime.

It is a super-2 number, since 2×713752781² = 1018886064770467922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (713752783) 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, 50982335 + ... + 50982348.

It is an arithmetic number, because the mean of its divisors is an integer number (203929368).

Almost surely, 2^713752781 is an apocalyptic number.

It is an amenable number.

713752781 is a deficient number, since it is larger than the sum of its proper divisors (101964691).

713752781 is a wasteful number, since it uses less digits than its factorization.

713752781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101964690.

The product of its digits is 82320, while the sum is 41.

The square root of 713752781 is about 26716.1520620017. The cubic root of 713752781 is about 893.6811640074.

The spelling of 713752781 in words is "seven hundred thirteen million, seven hundred fifty-two thousand, seven hundred eighty-one".