67697856 has 98 divisors (see below), whose sum is σ = 201553572. Its totient is φ = 22550400.

The previous prime is 67697837. The next prime is 67697863. The reversal of 67697856 is 65879676.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 45931 + ... + 47381.

Almost surely, 2^67697856 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 67697856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100776786).

67697856 is an abundant number, since it is smaller than the sum of its proper divisors (133855716).

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

67697856 is an equidigital number, since it uses as much as digits as its factorization.

67697856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 1456 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 67697856 is about 8227.8706844481. The cubic root of 67697856 is about 407.5600794653.

The spelling of 67697856 in words is "sixty-seven million, six hundred ninety-seven thousand, eight hundred fifty-six".