67925664 has 72 divisors (see below), whose sum is σ = 194201280. Its totient is φ = 22520448.

The previous prime is 67925653. The next prime is 67925677. The reversal of 67925664 is 46652976.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×67925664² = 9227791659681792, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64857 + ... + 65895.

It is an arithmetic number, because the mean of its divisors is an integer number (2697240).

Almost surely, 2^67925664 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 67925664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97100640).

67925664 is an abundant number, since it is smaller than the sum of its proper divisors (126275616).

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

67925664 is a wasteful number, since it uses less digits than its factorization.

67925664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282 (or 1271 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 67925664 is about 8241.7027366922. The cubic root of 67925664 is about 408.0167236513.

The spelling of 67925664 in words is "sixty-seven million, nine hundred twenty-five thousand, six hundred sixty-four".