80766707 has 4 divisors (see below), whose sum is σ = 92304816. Its totient is φ = 69228600.

The previous prime is 80766683. The next prime is 80766797. The reversal of 80766707 is 70766708.

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

It is not a de Polignac number, because 80766707 - 2¹⁰ = 80765683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80766797) 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, 5769044 + ... + 5769057.

It is an arithmetic number, because the mean of its divisors is an integer number (23076204).

Almost surely, 2^80766707 is an apocalyptic number.

80766707 is a deficient number, since it is larger than the sum of its proper divisors (11538109).

80766707 is a wasteful number, since it uses less digits than its factorization.

80766707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11538108.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 80766707 is about 8987.0299320743. The cubic root of 80766707 is about 432.2590806318.

Subtracting from 80766707 its reverse (70766708), we obtain a palindrome (9999999).

The spelling of 80766707 in words is "eighty million, seven hundred sixty-six thousand, seven hundred seven".