1683563764 has 12 divisors (see below), whose sum is σ = 2947335300. Its totient is φ = 841467968.

The previous prime is 1683563759. The next prime is 1683563789. The reversal of 1683563764 is 4673653861.

It can be written as a sum of positive squares in 2 ways, for example, as 1452219664 + 231344100 = 38108^2 + 15210^2 .

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, 66199 + ... + 88030.

It is an arithmetic number, because the mean of its divisors is an integer number (245611275).

Almost surely, 2^1683563764 is an apocalyptic number.

It is an amenable number.

1683563764 is a deficient number, since it is larger than the sum of its proper divisors (1263771536).

1683563764 is a wasteful number, since it uses less digits than its factorization.

1683563764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156962 (or 156960 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 49.

The square root of 1683563764 is about 41031.2535026655. The cubic root of 1683563764 is about 1189.6243816031.

The spelling of 1683563764 in words is "one billion, six hundred eighty-three million, five hundred sixty-three thousand, seven hundred sixty-four".