80907647 has 4 divisors (see below), whose sum is σ = 80939040. Its totient is φ = 80876256.

The previous prime is 80907611. The next prime is 80907667. The reversal of 80907647 is 74670908.

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 80907647 - 2¹² = 80903551 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 (80907667) 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, 11447 + ... + 17112.

It is an arithmetic number, because the mean of its divisors is an integer number (20234760).

Almost surely, 2^80907647 is an apocalyptic number.

80907647 is a deficient number, since it is larger than the sum of its proper divisors (31393).

80907647 is a wasteful number, since it uses less digits than its factorization.

80907647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31392.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 80907647 is about 8994.8678144818. The cubic root of 80907647 is about 432.5103689585.

The spelling of 80907647 in words is "eighty million, nine hundred seven thousand, six hundred forty-seven".