68697320 has 64 divisors (see below), whose sum is σ = 163296000. Its totient is φ = 25957888.

The previous prime is 68697319. The next prime is 68697329. The reversal of 68697320 is 2379686.

It is not an unprimeable number, because it can be changed into a prime (68697329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81461 + ... + 82299.

It is an arithmetic number, because the mean of its divisors is an integer number (2551500).

Almost surely, 2^68697320 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 68697320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81648000).

68697320 is an abundant number, since it is smaller than the sum of its proper divisors (94598680).

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

68697320 is a wasteful number, since it uses less digits than its factorization.

68697320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 68697320 is about 8288.3846435841. The cubic root of 68697320 is about 409.5559737887. Note that the first 3 decimals are identical.

The spelling of 68697320 in words is "sixty-eight million, six hundred ninety-seven thousand, three hundred twenty".