72307799 has 2 divisors, whose sum is σ = 72307800. Its totient is φ = 72307798.

The previous prime is 72307771. The next prime is 72307843. The reversal of 72307799 is 99770327.

It is an a-pointer prime, because the next prime (72307843) can be obtained adding 72307799 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72307799 - 2¹⁶ = 72242263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72307769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36153899 + 36153900.

It is an arithmetic number, because the mean of its divisors is an integer number (36153900).

Almost surely, 2^72307799 is an apocalyptic number.

72307799 is a deficient number, since it is larger than the sum of its proper divisors (1).

72307799 is an equidigital number, since it uses as much as digits as its factorization.

72307799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 166698, while the sum is 44.

The square root of 72307799 is about 8503.3992614718. The cubic root of 72307799 is about 416.6087438060.

The spelling of 72307799 in words is "seventy-two million, three hundred seven thousand, seven hundred ninety-nine".