1683647412 has 24 divisors (see below), whose sum is σ = 3933086976. Its totient is φ = 560562048.

The previous prime is 1683647401. The next prime is 1683647419. The reversal of 1683647412 is 2147463861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683647419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70933 + ... + 91644.

It is an arithmetic number, because the mean of its divisors is an integer number (163878624).

Almost surely, 2^1683647412 is an apocalyptic number.

1683647412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1683647412 is an abundant number, since it is smaller than the sum of its proper divisors (2249439564).

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

1683647412 is a wasteful number, since it uses less digits than its factorization.

1683647412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163447 (or 163445 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 1683647412 is about 41032.2728105573. The cubic root of 1683647412 is about 1189.6440834710.

The spelling of 1683647412 in words is "one billion, six hundred eighty-three million, six hundred forty-seven thousand, four hundred twelve".