80023813 has 2 divisors, whose sum is σ = 80023814. Its totient is φ = 80023812.

The previous prime is 80023787. The next prime is 80023819. The reversal of 80023813 is 31832008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67864644 + 12159169 = 8238^2 + 3487^2 .

It is a cyclic number.

It is not a de Polignac number, because 80023813 - 2⁵ = 80023781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80023819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40011906 + 40011907.

It is an arithmetic number, because the mean of its divisors is an integer number (40011907).

Almost surely, 2^80023813 is an apocalyptic number.

It is an amenable number.

80023813 is a deficient number, since it is larger than the sum of its proper divisors (1).

80023813 is an equidigital number, since it uses as much as digits as its factorization.

80023813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 80023813 is about 8945.6029981215. The cubic root of 80023813 is about 430.9296867262.

The spelling of 80023813 in words is "eighty million, twenty-three thousand, eight hundred thirteen".