819827516 has 12 divisors (see below), whose sum is σ = 1519092288. Its totient is φ = 385801152.

The previous prime is 819827507. The next prime is 819827563. The reversal of 819827516 is 615728918.

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, 6028076 + ... + 6028211.

It is an arithmetic number, because the mean of its divisors is an integer number (126591024).

Almost surely, 2^819827516 is an apocalyptic number.

It is an amenable number.

819827516 is a deficient number, since it is larger than the sum of its proper divisors (699264772).

819827516 is a wasteful number, since it uses less digits than its factorization.

819827516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12056308 (or 12056306 counting only the distinct ones).

The product of its digits is 241920, while the sum is 47.

The square root of 819827516 is about 28632.6302668826. The cubic root of 819827516 is about 935.9245303433.

It can be divided in two parts, 81982 and 7516, that added together give a palindrome (89498).

The spelling of 819827516 in words is "eight hundred nineteen million, eight hundred twenty-seven thousand, five hundred sixteen".