1656968 has 8 divisors (see below), whose sum is σ = 3106830. Its totient is φ = 828480.

The previous prime is 1656953. The next prime is 1656979. The reversal of 1656968 is 8696561.

It can be written as a sum of positive squares in only one way, i.e., 1249924 + 407044 = 1118^2 + 638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103553 + ... + 103568.

2^1656968 is an apocalyptic number.

It is an amenable number.

1656968 is a deficient number, since it is larger than the sum of its proper divisors (1449862).

1656968 is a wasteful number, since it uses less digits than its factorization.

1656968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207127 (or 207123 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 1656968 is about 1287.2326906974. The cubic root of 1656968 is about 118.3326817835.

The spelling of 1656968 in words is "one million, six hundred fifty-six thousand, nine hundred sixty-eight".