80782047 has 6 divisors (see below), whose sum is σ = 116685192. Its totient is φ = 53854692.

The previous prime is 80782021. The next prime is 80782069. The reversal of 80782047 is 74028708.

It is not a de Polignac number, because 80782047 - 2⁷ = 80781919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80782847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4487883 + ... + 4487900.

It is an arithmetic number, because the mean of its divisors is an integer number (19447532).

Almost surely, 2^80782047 is an apocalyptic number.

80782047 is a deficient number, since it is larger than the sum of its proper divisors (35903145).

80782047 is a wasteful number, since it uses less digits than its factorization.

80782047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8975789 (or 8975786 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 80782047 is about 8987.8833437022. The cubic root of 80782047 is about 432.2864451850.

The spelling of 80782047 in words is "eighty million, seven hundred eighty-two thousand, forty-seven".