827013197 has 4 divisors (see below), whose sum is σ = 827075040. Its totient is φ = 826951356.

The previous prime is 827013191. The next prime is 827013203. The reversal of 827013197 is 791310728.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (827013191) and next prime (827013203).

It is a cyclic number.

It is not a de Polignac number, because 827013197 - 2⁴ = 827013181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 827013197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827013191) 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, 1583 + ... + 40700.

It is an arithmetic number, because the mean of its divisors is an integer number (206768760).

Almost surely, 2^827013197 is an apocalyptic number.

It is an amenable number.

827013197 is a deficient number, since it is larger than the sum of its proper divisors (61843).

827013197 is a wasteful number, since it uses less digits than its factorization.

827013197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61842.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 827013197 is about 28757.8371405083. The cubic root of 827013197 is about 938.6509987954.

The spelling of 827013197 in words is "eight hundred twenty-seven million, thirteen thousand, one hundred ninety-seven".