1987696 has 10 divisors (see below), whose sum is σ = 3851192. Its totient is φ = 993840.

The previous prime is 1987693. The next prime is 1987697. The reversal of 1987696 is 6967891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1987693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62100 + ... + 62131.

2^1987696 is an apocalyptic number.

1987696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1987696 is a deficient number, since it is larger than the sum of its proper divisors (1863496).

1987696 is a wasteful number, since it uses less digits than its factorization.

1987696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124239 (or 124233 counting only the distinct ones).

The product of its digits is 163296, while the sum is 46.

The square root of 1987696 is about 1409.8567303099. The cubic root of 1987696 is about 125.7332055350.

The spelling of 1987696 in words is "one million, nine hundred eighty-seven thousand, six hundred ninety-six".