1697804982 has 16 divisors (see below), whose sum is σ = 3772900080. Its totient is φ = 565934976.

The previous prime is 1697804951. The next prime is 1697804987. The reversal of 1697804982 is 2894087961.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 31440833 = 1697804982 / (1 + 6 + 9 + 7 + 8 + 0 + 4 + 9 + 8 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1697804987) 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, 15720363 + ... + 15720470.

It is an arithmetic number, because the mean of its divisors is an integer number (235806255).

Almost surely, 2^1697804982 is an apocalyptic number.

1697804982 is an abundant number, since it is smaller than the sum of its proper divisors (2075095098).

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

1697804982 is a wasteful number, since it uses less digits than its factorization.

1697804982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31440844 (or 31440838 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 1697804982 is about 41204.4291551285. The cubic root of 1697804982 is about 1192.9693006698.

The spelling of 1697804982 in words is "one billion, six hundred ninety-seven million, eight hundred four thousand, nine hundred eighty-two".