72310743 has 12 divisors (see below), whose sum is σ = 105151800. Its totient is φ = 47882736.

The previous prime is 72310739. The next prime is 72310753. The reversal of 72310743 is 34701327.

It is not a de Polignac number, because 72310743 - 2² = 72310739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72310703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25621 + ... + 28302.

It is an arithmetic number, because the mean of its divisors is an integer number (8762650).

Almost surely, 2^72310743 is an apocalyptic number.

72310743 is a deficient number, since it is larger than the sum of its proper divisors (32841057).

72310743 is a wasteful number, since it uses less digits than its factorization.

72310743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54078 (or 54075 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 72310743 is about 8503.5723669526. The cubic root of 72310743 is about 416.6143977812.

The spelling of 72310743 in words is "seventy-two million, three hundred ten thousand, seven hundred forty-three".