1461987 has 12 divisors (see below), whose sum is σ = 2147184. Its totient is φ = 958320.

The previous prime is 1461979. The next prime is 1461989. The reversal of 1461987 is 7891641.

It is not a de Polignac number, because 1461987 - 2³ = 1461979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1461989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 783 + ... + 1880.

It is an arithmetic number, because the mean of its divisors is an integer number (178932).

2^1461987 is an apocalyptic number.

1461987 is a deficient number, since it is larger than the sum of its proper divisors (685197).

1461987 is a wasteful number, since it uses less digits than its factorization.

1461987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730 (or 2727 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 1461987 is about 1209.1265442459. The cubic root of 1461987 is about 113.4961606081.

It can be divided in two parts, 14619 and 87, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 1461987 in words is "one million, four hundred sixty-one thousand, nine hundred eighty-seven".