67971894 has 32 divisors (see below), whose sum is σ = 139242240. Its totient is φ = 22113312.

The previous prime is 67971851. The next prime is 67971901. The reversal of 67971894 is 49817976.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54967 + ... + 56189.

It is an arithmetic number, because the mean of its divisors is an integer number (4351320).

Almost surely, 2^67971894 is an apocalyptic number.

67971894 is an abundant number, since it is smaller than the sum of its proper divisors (71270346).

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

67971894 is a wasteful number, since it uses less digits than its factorization.

67971894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444.

The product of its digits is 762048, while the sum is 51.

The square root of 67971894 is about 8244.5068985355. The cubic root of 67971894 is about 408.1092676391.

The spelling of 67971894 in words is "sixty-seven million, nine hundred seventy-one thousand, eight hundred ninety-four".