80323669 has 4 divisors (see below), whose sum is σ = 80622540. Its totient is φ = 80024800.

The previous prime is 80323651. The next prime is 80323681. The reversal of 80323669 is 96632308.

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 27688644 + 52635025 = 5262^2 + 7255^2 .

It is a cyclic number.

It is not a de Polignac number, because 80323669 - 2⁹ = 80323157 is a prime.

It is a super-2 number, since 2×80323669² = 12903783603243122, 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 (80323169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149032 + ... + 149569.

It is an arithmetic number, because the mean of its divisors is an integer number (20155635).

Almost surely, 2^80323669 is an apocalyptic number.

It is an amenable number.

80323669 is a deficient number, since it is larger than the sum of its proper divisors (298871).

80323669 is a wasteful number, since it uses less digits than its factorization.

80323669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298870.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 80323669 is about 8962.3472929808. The cubic root of 80323669 is about 431.4672591768.

The spelling of 80323669 in words is "eighty million, three hundred twenty-three thousand, six hundred sixty-nine".