1506864 has 20 divisors (see below), whose sum is σ = 3892856. Its totient is φ = 502272.

The previous prime is 1506851. The next prime is 1506877. The reversal of 1506864 is 4686051.

It is an interprime number because it is at equal distance from previous prime (1506851) and next prime (1506877).

It is a super-2 number, since 2×1506864² = 4541278228992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15649 + ... + 15744.

2^1506864 is an apocalyptic number.

It is an amenable number.

1506864 is an abundant number, since it is smaller than the sum of its proper divisors (2385992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1506864 is a wasteful number, since it uses less digits than its factorization.

1506864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31404 (or 31398 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1506864 is about 1227.5438892357. The cubic root of 1506864 is about 114.6457656755.

The spelling of 1506864 in words is "one million, five hundred six thousand, eight hundred sixty-four".