80426567 has 16 divisors (see below), whose sum is σ = 89427072. Its totient is φ = 71850240.

The previous prime is 80426557. The next prime is 80426579. The reversal of 80426567 is 76562408.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80426567 - 2⁴ = 80426551 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80426567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80426557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130043 + ... + 130659.

It is an arithmetic number, because the mean of its divisors is an integer number (5589192).

Almost surely, 2^80426567 is an apocalyptic number.

80426567 is a deficient number, since it is larger than the sum of its proper divisors (9000505).

80426567 is a wasteful number, since it uses less digits than its factorization.

80426567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 80426567 is about 8968.0860276873. The cubic root of 80426567 is about 431.6514231303.

The spelling of 80426567 in words is "eighty million, four hundred twenty-six thousand, five hundred sixty-seven".