80438863 has 2 divisors, whose sum is σ = 80438864. Its totient is φ = 80438862.

The previous prime is 80438833. The next prime is 80438873. The reversal of 80438863 is 36883408.

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-80438863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80438803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40219431 + 40219432.

It is an arithmetic number, because the mean of its divisors is an integer number (40219432).

Almost surely, 2^80438863 is an apocalyptic number.

80438863 is a deficient number, since it is larger than the sum of its proper divisors (1).

80438863 is an equidigital number, since it uses as much as digits as its factorization.

80438863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 80438863 is about 8968.7715435281. The cubic root of 80438863 is about 431.6734196572.

The spelling of 80438863 in words is "eighty million, four hundred thirty-eight thousand, eight hundred sixty-three".