80697069 has 6 divisors (see below), whose sum is σ = 116562446. Its totient is φ = 53798040.

The previous prime is 80697031. The next prime is 80697103. The reversal of 80697069 is 96079608.

It can be written as a sum of positive squares in only one way, i.e., 66634569 + 14062500 = 8163^2 + 3750^2 .

It is not a de Polignac number, because 80697069 - 2⁹ = 80696557 is a prime.

It is a super-2 number, since 2×80697069² = 13024033890381522, 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 (80697569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4483162 + ... + 4483179.

Almost surely, 2^80697069 is an apocalyptic number.

It is an amenable number.

80697069 is a deficient number, since it is larger than the sum of its proper divisors (35865377).

80697069 is a wasteful number, since it uses less digits than its factorization.

80697069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8966347 (or 8966344 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 80697069 is about 8983.1547353922. The cubic root of 80697069 is about 432.1348119636.

The spelling of 80697069 in words is "eighty million, six hundred ninety-seven thousand, sixty-nine".