808142247 has 24 divisors (see below), whose sum is σ = 1282619520. Its totient is φ = 486251280.

The previous prime is 808142239. The next prime is 808142249. The reversal of 808142247 is 742241808.

It is not a de Polignac number, because 808142247 - 2³ = 808142239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808142249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15603 + ... + 43124.

It is an arithmetic number, because the mean of its divisors is an integer number (53442480).

Almost surely, 2^808142247 is an apocalyptic number.

808142247 is a deficient number, since it is larger than the sum of its proper divisors (474477273).

808142247 is a wasteful number, since it uses less digits than its factorization.

808142247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58883 (or 58880 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 808142247 is about 28427.8428129888. The cubic root of 808142247 is about 931.4565555840.

The spelling of 808142247 in words is "eight hundred eight million, one hundred forty-two thousand, two hundred forty-seven".