1987676 has 6 divisors (see below), whose sum is σ = 3478440. Its totient is φ = 993836.

The previous prime is 1987673. The next prime is 1987679. The reversal of 1987676 is 6767891.

It is an interprime number because it is at equal distance from previous prime (1987673) and next prime (1987679).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1987673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248456 + ... + 248463.

It is an arithmetic number, because the mean of its divisors is an integer number (579740).

2^1987676 is an apocalyptic number.

It is an amenable number.

1987676 is a deficient number, since it is larger than the sum of its proper divisors (1490764).

1987676 is a wasteful number, since it uses less digits than its factorization.

1987676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496923 (or 496921 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 1987676 is about 1409.8496373727. The cubic root of 1987676 is about 125.7327838285.

The spelling of 1987676 in words is "one million, nine hundred eighty-seven thousand, six hundred seventy-six".