80899759 has 2 divisors, whose sum is σ = 80899760. Its totient is φ = 80899758.

The previous prime is 80899757. The next prime is 80899771. The reversal of 80899759 is 95799808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80899759 - 2¹ = 80899757 is a prime.

Together with 80899757, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80899757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40449879 + 40449880.

It is an arithmetic number, because the mean of its divisors is an integer number (40449880).

Almost surely, 2^80899759 is an apocalyptic number.

80899759 is a deficient number, since it is larger than the sum of its proper divisors (1).

80899759 is an equidigital number, since it uses as much as digits as its factorization.

80899759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The square root of 80899759 is about 8994.4293315363. The cubic root of 80899759 is about 432.4963127978.

The spelling of 80899759 in words is "eighty million, eight hundred ninety-nine thousand, seven hundred fifty-nine".