80526469 has 4 divisors (see below), whose sum is σ = 80646796. Its totient is φ = 80406144.

The previous prime is 80526461. The next prime is 80526491. The reversal of 80526469 is 96462508.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46444225 + 34082244 = 6815^2 + 5838^2 .

It is a cyclic number.

It is not a de Polignac number, because 80526469 - 2³ = 80526461 is a prime.

It is a super-2 number, since 2×80526469² = 12969024419215922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80526461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59154 + ... + 60499.

It is an arithmetic number, because the mean of its divisors is an integer number (20161699).

Almost surely, 2^80526469 is an apocalyptic number.

It is an amenable number.

80526469 is a deficient number, since it is larger than the sum of its proper divisors (120327).

80526469 is a wasteful number, since it uses less digits than its factorization.

80526469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120326.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 80526469 is about 8973.6541609313. The cubic root of 80526469 is about 431.8300747017.

The spelling of 80526469 in words is "eighty million, five hundred twenty-six thousand, four hundred sixty-nine".