68307536 has 20 divisors (see below), whose sum is σ = 144377664. Its totient is φ = 31048800.

The previous prime is 68307529. The next prime is 68307559. The reversal of 68307536 is 63570386.

It is a self number, because there is not a number n which added to its sum of digits gives 68307536.

It is a congruent number.

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, 193880 + ... + 194231.

Almost surely, 2^68307536 is an apocalyptic number.

It is an amenable number.

68307536 is an abundant number, since it is smaller than the sum of its proper divisors (76070128).

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

68307536 is a wasteful number, since it uses less digits than its factorization.

68307536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388130 (or 388124 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 68307536 is about 8264.8373244729. The cubic root of 68307536 is about 408.7799064116.

The spelling of 68307536 in words is "sixty-eight million, three hundred seven thousand, five hundred thirty-six".