1987474 has 8 divisors (see below), whose sum is σ = 3031920. Its totient is φ = 976836.

The previous prime is 1987471. The next prime is 1987477. The reversal of 1987474 is 4747891.

It is an interprime number because it is at equal distance from previous prime (1987471) and next prime (1987477).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1987471) 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 in 3 ways as a sum of consecutive naturals, for example, 8304 + ... + 8539.

It is an arithmetic number, because the mean of its divisors is an integer number (378990).

2^1987474 is an apocalyptic number.

1987474 is a deficient number, since it is larger than the sum of its proper divisors (1044446).

1987474 is a wasteful number, since it uses less digits than its factorization.

1987474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16904.

The product of its digits is 56448, while the sum is 40.

The square root of 1987474 is about 1409.7779967073. Note that the first 3 decimals coincide. The cubic root of 1987474 is about 125.7285244350.

The spelling of 1987474 in words is "one million, nine hundred eighty-seven thousand, four hundred seventy-four".