68669532 has 30 divisors (see below), whose sum is σ = 179516568. Its totient is φ = 22889736.

The previous prime is 68669509. The next prime is 68669537. The reversal of 68669532 is 23596686.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68669537) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 105648 + ... + 106295.

Almost surely, 2^68669532 is an apocalyptic number.

It is an amenable number.

68669532 is an abundant number, since it is smaller than the sum of its proper divisors (110847036).

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

68669532 is a wasteful number, since it uses less digits than its factorization.

68669532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211959 (or 211948 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 68669532 is about 8286.7081522158. The cubic root of 68669532 is about 409.5007446752.

The spelling of 68669532 in words is "sixty-eight million, six hundred sixty-nine thousand, five hundred thirty-two".