72830713 has 4 divisors (see below), whose sum is σ = 73828468. Its totient is φ = 71832960.

The previous prime is 72830711. The next prime is 72830729. The reversal of 72830713 is 31703827.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32228329 + 40602384 = 5677^2 + 6372^2 .

It is a cyclic number.

It is not a de Polignac number, because 72830713 - 2¹ = 72830711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72830711) 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, 498768 + ... + 498913.

It is an arithmetic number, because the mean of its divisors is an integer number (18457117).

Almost surely, 2^72830713 is an apocalyptic number.

72830713 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

72830713 is a deficient number, since it is larger than the sum of its proper divisors (997755).

72830713 is an equidigital number, since it uses as much as digits as its factorization.

72830713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997754.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 72830713 is about 8534.0912228544. The cubic root of 72830713 is about 417.6106066684.

The spelling of 72830713 in words is "seventy-two million, eight hundred thirty thousand, seven hundred thirteen".