1506987 has 6 divisors (see below), whose sum is σ = 2176772. Its totient is φ = 1004652.

The previous prime is 1506979. The next prime is 1506997. The reversal of 1506987 is 7896051.

It is not a de Polignac number, because 1506987 - 2³ = 1506979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1506907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83713 + ... + 83730.

2^1506987 is an apocalyptic number.

1506987 is a deficient number, since it is larger than the sum of its proper divisors (669785).

1506987 is a wasteful number, since it uses less digits than its factorization.

1506987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167449 (or 167446 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1506987 is about 1227.5939882551. The cubic root of 1506987 is about 114.6488849673.

The spelling of 1506987 in words is "one million, five hundred six thousand, nine hundred eighty-seven".