72710307 has 6 divisors (see below), whose sum is σ = 105026012. Its totient is φ = 48473532.

The previous prime is 72710299. The next prime is 72710317. The reversal of 72710307 is 70301727.

It is not a de Polignac number, because 72710307 - 2³ = 72710299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72710317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4039453 + ... + 4039470.

Almost surely, 2^72710307 is an apocalyptic number.

72710307 is a deficient number, since it is larger than the sum of its proper divisors (32315705).

72710307 is a wasteful number, since it uses less digits than its factorization.

72710307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8078929 (or 8078926 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 27.

The square root of 72710307 is about 8527.0338922746. The cubic root of 72710307 is about 417.3803441147.

The spelling of 72710307 in words is "seventy-two million, seven hundred ten thousand, three hundred seven".