80827147 has 4 divisors (see below), whose sum is σ = 83614320. Its totient is φ = 78039976.

The previous prime is 80827139. The next prime is 80827151. The reversal of 80827147 is 74172808.

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 80827147 - 2³ = 80827139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80827127) 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, 1393543 + ... + 1393600.

It is an arithmetic number, because the mean of its divisors is an integer number (20903580).

Almost surely, 2^80827147 is an apocalyptic number.

80827147 is a deficient number, since it is larger than the sum of its proper divisors (2787173).

80827147 is a wasteful number, since it uses less digits than its factorization.

80827147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787172.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 80827147 is about 8990.3919269407. The cubic root of 80827147 is about 432.3668776257.

The spelling of 80827147 in words is "eighty million, eight hundred twenty-seven thousand, one hundred forty-seven".