67063864 has 32 divisors (see below), whose sum is σ = 147218400. Its totient is φ = 28039680.

The previous prime is 67063853. The next prime is 67063873. The reversal of 67063864 is 46836076.

It is a super-2 number, since 2×67063864² = 8995123709220992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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, 12309 + ... + 16900.

It is an arithmetic number, because the mean of its divisors is an integer number (4600575).

Almost surely, 2^67063864 is an apocalyptic number.

It is an amenable number.

67063864 is an abundant number, since it is smaller than the sum of its proper divisors (80154536).

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

67063864 is a wasteful number, since it uses less digits than its factorization.

67063864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29263 (or 29259 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 67063864 is about 8189.2529573826. The cubic root of 67063864 is about 406.2838171770.

The spelling of 67063864 in words is "sixty-seven million, sixty-three thousand, eight hundred sixty-four".