1563672 has 32 divisors (see below), whose sum is σ = 4265280. Its totient is φ = 473760.

The previous prime is 1563649. The next prime is 1563689. The reversal of 1563672 is 2763651.

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 a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2698 + ... + 3225.

It is an arithmetic number, because the mean of its divisors is an integer number (133290).

2^1563672 is an apocalyptic number.

1563672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1563672 is an abundant number, since it is smaller than the sum of its proper divisors (2701608).

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

1563672 is a wasteful number, since it uses less digits than its factorization.

1563672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5943 (or 5939 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 1563672 is about 1250.4687121236. The cubic root of 1563672 is about 116.0687266139.

It can be divided in two parts, 156 and 3672, that added together give a triangular number (3828 = T₈₇).

The spelling of 1563672 in words is "one million, five hundred sixty-three thousand, six hundred seventy-two".