1516887 has 20 divisors (see below), whose sum is σ = 2310616. Its totient is φ = 991440.

The previous prime is 1516883. The next prime is 1516897. The reversal of 1516887 is 7886151.

It is not a de Polignac number, because 1516887 - 2² = 1516883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1516883) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4788 + ... + 5094.

2^1516887 is an apocalyptic number.

1516887 is a deficient number, since it is larger than the sum of its proper divisors (793729).

1516887 is an equidigital number, since it uses as much as digits as its factorization.

1516887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 371 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 1516887 is about 1231.6196653188. The cubic root of 1516887 is about 114.8993953162.

The spelling of 1516887 in words is "one million, five hundred sixteen thousand, eight hundred eighty-seven".