1683973725 has 48 divisors (see below), whose sum is σ = 3201128448. Its totient is φ = 765167040.

The previous prime is 1683973721. The next prime is 1683973729. The reversal of 1683973725 is 5273793861.

It is an interprime number because it is at equal distance from previous prime (1683973721) and next prime (1683973729).

It is not a de Polignac number, because 1683973725 - 2² = 1683973721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1683973721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78072 + ... + 97278.

It is an arithmetic number, because the mean of its divisors is an integer number (66690176).

Almost surely, 2^1683973725 is an apocalyptic number.

1683973725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1683973725 is a deficient number, since it is larger than the sum of its proper divisors (1517154723).

1683973725 is a wasteful number, since it uses less digits than its factorization.

1683973725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19394 (or 19389 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 1683973725 is about 41036.2489148314. The cubic root of 1683973725 is about 1189.7209347267.

The spelling of 1683973725 in words is "one billion, six hundred eighty-three million, nine hundred seventy-three thousand, seven hundred twenty-five".