1506667 has 4 divisors (see below), whose sum is σ = 1520856. Its totient is φ = 1492480.

The previous prime is 1506653. The next prime is 1506689. The reversal of 1506667 is 7666051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7666051 = 1259 ⋅6089.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1506667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1506607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6934 + ... + 7147.

It is an arithmetic number, because the mean of its divisors is an integer number (380214).

2^1506667 is an apocalyptic number.

1506667 is a deficient number, since it is larger than the sum of its proper divisors (14189).

1506667 is a wasteful number, since it uses less digits than its factorization.

1506667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14188.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 1506667 is about 1227.4636450828. The cubic root of 1506667 is about 114.6407693829.

The spelling of 1506667 in words is "one million, five hundred six thousand, six hundred sixty-seven".