1696987882 has 4 divisors (see below), whose sum is σ = 2545481826. Its totient is φ = 848493940.

The previous prime is 1696987879. The next prime is 1696987883. The reversal of 1696987882 is 2887896961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2887896961 = 15797 ⋅182813.

It can be written as a sum of positive squares in only one way, i.e., 1457636041 + 239351841 = 38179^2 + 15471^2 .

It is not an unprimeable number, because it can be changed into a prime (1696987883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424246969 + ... + 424246972.

Almost surely, 2^1696987882 is an apocalyptic number.

1696987882 is a deficient number, since it is larger than the sum of its proper divisors (848493944).

1696987882 is an equidigital number, since it uses as much as digits as its factorization.

1696987882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848493943.

The product of its digits is 20901888, while the sum is 64.

The square root of 1696987882 is about 41194.5127656585. The cubic root of 1696987882 is about 1192.7778904580. Note that the first 3 decimals are identical.

The spelling of 1696987882 in words is "one billion, six hundred ninety-six million, nine hundred eighty-seven thousand, eight hundred eighty-two".