1682797788 has 96 divisors (see below), whose sum is σ = 5087936000. Its totient is φ = 480788784.

The previous prime is 1682797771. The next prime is 1682797799. The reversal of 1682797788 is 8877972861.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14331 + ... + 59757.

Almost surely, 2^1682797788 is an apocalyptic number.

1682797788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1682797788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2543968000).

1682797788 is an abundant number, since it is smaller than the sum of its proper divisors (3405138212).

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

1682797788 is a wasteful number, since it uses less digits than its factorization.

1682797788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45461 (or 45439 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 63.

The square root of 1682797788 is about 41021.9183851755. The cubic root of 1682797788 is about 1189.4439385902.

The spelling of 1682797788 in words is "one billion, six hundred eighty-two million, seven hundred ninety-seven thousand, seven hundred eighty-eight".