68729952 has 48 divisors (see below), whose sum is σ = 182129472. Its totient is φ = 22692480.

The previous prime is 68729939. The next prime is 68729977. The reversal of 68729952 is 25992786.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6927 + ... + 13617.

It is an arithmetic number, because the mean of its divisors is an integer number (3794364).

Almost surely, 2^68729952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68729952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91064736).

68729952 is an abundant number, since it is smaller than the sum of its proper divisors (113399520).

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

68729952 is a wasteful number, since it uses less digits than its factorization.

68729952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6811 (or 6803 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 68729952 is about 8290.3529478545. The cubic root of 68729952 is about 409.6208114222.

The spelling of 68729952 in words is "sixty-eight million, seven hundred twenty-nine thousand, nine hundred fifty-two".