72727807 has 2 divisors, whose sum is σ = 72727808. Its totient is φ = 72727806.

The previous prime is 72727789. The next prime is 72727843. The reversal of 72727807 is 70872727.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72727807 - 2¹⁵ = 72695039 is a prime.

It is a super-2 number, since 2×72727807² = 10578667822058498, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 72727807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72727867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36363903 + 36363904.

It is an arithmetic number, because the mean of its divisors is an integer number (36363904).

Almost surely, 2^72727807 is an apocalyptic number.

72727807 is a deficient number, since it is larger than the sum of its proper divisors (1).

72727807 is an equidigital number, since it uses as much as digits as its factorization.

72727807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76832, while the sum is 40.

The square root of 72727807 is about 8528.0599786821. The cubic root of 72727807 is about 417.4138266217.

The spelling of 72727807 in words is "seventy-two million, seven hundred twenty-seven thousand, eight hundred seven".