80642807 has 8 divisors (see below), whose sum is σ = 96170496. Its totient is φ = 66116952.

The previous prime is 80642803. The next prime is 80642813. The reversal of 80642807 is 70824608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80642807 - 2² = 80642803 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 (80642803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250283 + ... + 250604.

It is an arithmetic number, because the mean of its divisors is an integer number (12021312).

Almost surely, 2^80642807 is an apocalyptic number.

80642807 is a deficient number, since it is larger than the sum of its proper divisors (15527689).

80642807 is a wasteful number, since it uses less digits than its factorization.

80642807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500917.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 80642807 is about 8980.1340190445. The cubic root of 80642807 is about 432.0379321259.

The spelling of 80642807 in words is "eighty million, six hundred forty-two thousand, eight hundred seven".