1487866 has 4 divisors (see below), whose sum is σ = 2231802. Its totient is φ = 743932.

The previous prime is 1487821. The next prime is 1487867. The reversal of 1487866 is 6687841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6687841 = 367 ⋅18223.

It can be written as a sum of positive squares in only one way, i.e., 1058841 + 429025 = 1029^2 + 655^2 .

It is not an unprimeable number, because it can be changed into a prime (1487867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371965 + ... + 371968.

2^1487866 is an apocalyptic number.

1487866 is a deficient number, since it is larger than the sum of its proper divisors (743936).

1487866 is an equidigital number, since it uses as much as digits as its factorization.

1487866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743935.

The product of its digits is 64512, while the sum is 40.

The square root of 1487866 is about 1219.7811279078. The cubic root of 1487866 is about 114.1619223584.

The spelling of 1487866 in words is "one million, four hundred eighty-seven thousand, eight hundred sixty-six".