1655672 has 16 divisors (see below), whose sum is σ = 3177240. Its totient is φ = 808416.

The previous prime is 1655671. The next prime is 1655677. The reversal of 1655672 is 2765561.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655671) 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, 2063 + ... + 2750.

2^1655672 is an apocalyptic number.

It is an amenable number.

1655672 is a deficient number, since it is larger than the sum of its proper divisors (1521568).

1655672 is a wasteful number, since it uses less digits than its factorization.

1655672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862 (or 4858 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 1655672 is about 1286.7291867367. The cubic root of 1655672 is about 118.3018223752.

The spelling of 1655672 in words is "one million, six hundred fifty-five thousand, six hundred seventy-two".