827090840 has 16 divisors (see below), whose sum is σ = 1860954480. Its totient is φ = 330836320.

The previous prime is 827090779. The next prime is 827090861. The reversal of 827090840 is 48090728.

It is a super-2 number, since 2×827090840² = 1368158515223811200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 827090794 and 827090803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10338596 + ... + 10338675.

It is an arithmetic number, because the mean of its divisors is an integer number (116309655).

Almost surely, 2^827090840 is an apocalyptic number.

It is an amenable number.

827090840 is an abundant number, since it is smaller than the sum of its proper divisors (1033863640).

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

827090840 is a wasteful number, since it uses less digits than its factorization.

827090840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20677282 (or 20677278 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 827090840 is about 28759.1870538790. The cubic root of 827090840 is about 938.6803725302.

The spelling of 827090840 in words is "eight hundred twenty-seven million, ninety thousand, eight hundred forty".