827117742 has 32 divisors (see below), whose sum is σ = 1826375040. Its totient is φ = 247620320.

The previous prime is 827117737. The next prime is 827117777. The reversal of 827117742 is 247711728.

It is a self number, because there is not a number n which added to its sum of digits gives 827117742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70017 + ... + 80972.

It is an arithmetic number, because the mean of its divisors is an integer number (57074220).

Almost surely, 2^827117742 is an apocalyptic number.

827117742 is an abundant number, since it is smaller than the sum of its proper divisors (999257298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

827117742 is a wasteful number, since it uses less digits than its factorization.

827117742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151088.

The product of its digits is 43904, while the sum is 39.

The square root of 827117742 is about 28759.6547614884. The cubic root of 827117742 is about 938.6905496089.

The spelling of 827117742 in words is "eight hundred twenty-seven million, one hundred seventeen thousand, seven hundred forty-two".