80780023 has 2 divisors, whose sum is σ = 80780024. Its totient is φ = 80780022.

The previous prime is 80779987. The next prime is 80780033. The reversal of 80780023 is 32008708.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80780023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80779973 and 80780000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80780033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40390011 + 40390012.

It is an arithmetic number, because the mean of its divisors is an integer number (40390012).

Almost surely, 2^80780023 is an apocalyptic number.

80780023 is a deficient number, since it is larger than the sum of its proper divisors (1).

80780023 is an equidigital number, since it uses as much as digits as its factorization.

80780023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 80780023 is about 8987.7707469650. The cubic root of 80780023 is about 432.2828348322.

The spelling of 80780023 in words is "eighty million, seven hundred eighty thousand, twenty-three".