80140667 has 4 divisors (see below), whose sum is σ = 80207736. Its totient is φ = 80073600.

The previous prime is 80140639. The next prime is 80140679. The reversal of 80140667 is 76604108.

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

It is a cyclic number.

It is not a de Polignac number, because 80140667 - 2¹⁶ = 80075131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80140607) 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, 31709 + ... + 34142.

It is an arithmetic number, because the mean of its divisors is an integer number (20051934).

Almost surely, 2^80140667 is an apocalyptic number.

80140667 is a deficient number, since it is larger than the sum of its proper divisors (67069).

80140667 is a wasteful number, since it uses less digits than its factorization.

80140667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67068.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 80140667 is about 8952.1319807072. The cubic root of 80140667 is about 431.1393383496.

The spelling of 80140667 in words is "eighty million, one hundred forty thousand, six hundred sixty-seven".