827490101 has 4 divisors (see below), whose sum is σ = 828592704. Its totient is φ = 826387500.

The previous prime is 827490091. The next prime is 827490121. The reversal of 827490101 is 101094728.

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.

It is a cyclic number.

It is not a de Polignac number, because 827490101 - 2¹⁸ = 827227957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827490121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550175 + ... + 551676.

It is an arithmetic number, because the mean of its divisors is an integer number (207148176).

Almost surely, 2^827490101 is an apocalyptic number.

It is an amenable number.

827490101 is a deficient number, since it is larger than the sum of its proper divisors (1102603).

827490101 is a wasteful number, since it uses less digits than its factorization.

827490101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102602.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 827490101 is about 28766.1276677971. The cubic root of 827490101 is about 938.8313910789.

The spelling of 827490101 in words is "eight hundred twenty-seven million, four hundred ninety thousand, one hundred one".