80472647 has 2 divisors, whose sum is σ = 80472648. Its totient is φ = 80472646.

The previous prime is 80472631. The next prime is 80472671. The reversal of 80472647 is 74627408.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80472647 - 2⁴ = 80472631 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80472647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80472677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40236323 + 40236324.

It is an arithmetic number, because the mean of its divisors is an integer number (40236324).

Almost surely, 2^80472647 is an apocalyptic number.

80472647 is a deficient number, since it is larger than the sum of its proper divisors (1).

80472647 is an equidigital number, since it uses as much as digits as its factorization.

80472647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 80472647 is about 8970.6547698593. The cubic root of 80472647 is about 431.7338449005.

The spelling of 80472647 in words is "eighty million, four hundred seventy-two thousand, six hundred forty-seven".