72797807 has 2 divisors, whose sum is σ = 72797808. Its totient is φ = 72797806.

The previous prime is 72797761. The next prime is 72797819. The reversal of 72797807 is 70879727.

It is a strong prime.

It is an emirp because it is prime and its reverse (70879727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72797807 - 2⁸ = 72797551 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 (72797867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36398903 + 36398904.

It is an arithmetic number, because the mean of its divisors is an integer number (36398904).

Almost surely, 2^72797807 is an apocalyptic number.

72797807 is a deficient number, since it is larger than the sum of its proper divisors (1).

72797807 is an equidigital number, since it uses as much as digits as its factorization.

72797807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345744, while the sum is 47.

The square root of 72797807 is about 8532.1630903306. The cubic root of 72797807 is about 417.5477029648.

The spelling of 72797807 in words is "seventy-two million, seven hundred ninety-seven thousand, eight hundred seven".