80966701 has 4 divisors (see below), whose sum is σ = 80999100. Its totient is φ = 80934304.

The previous prime is 80966689. The next prime is 80966707. The reversal of 80966701 is 10766908.

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 38378025 + 42588676 = 6195^2 + 6526^2 .

It is a cyclic number.

It is not a de Polignac number, because 80966701 - 2⁷ = 80966573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80966707) 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, 12106 + ... + 17563.

It is an arithmetic number, because the mean of its divisors is an integer number (20249775).

Almost surely, 2^80966701 is an apocalyptic number.

It is an amenable number.

80966701 is a deficient number, since it is larger than the sum of its proper divisors (32399).

80966701 is a wasteful number, since it uses less digits than its factorization.

80966701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32398.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 80966701 is about 8998.1498653890. The cubic root of 80966701 is about 432.6155722638.

The spelling of 80966701 in words is "eighty million, nine hundred sixty-six thousand, seven hundred one".