67398894 has 12 divisors (see below), whose sum is σ = 146030976. Its totient is φ = 22466292.

The previous prime is 67398889. The next prime is 67398913. The reversal of 67398894 is 49889376.

It is a super-2 number, since 2×67398894² = 9085221824846472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67398894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1872174 + ... + 1872209.

It is an arithmetic number, because the mean of its divisors is an integer number (12169248).

Almost surely, 2^67398894 is an apocalyptic number.

67398894 is an abundant number, since it is smaller than the sum of its proper divisors (78632082).

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

67398894 is a wasteful number, since it uses less digits than its factorization.

67398894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744391 (or 3744388 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 67398894 is about 8209.6829415027. The cubic root of 67398894 is about 406.9592491200.

The spelling of 67398894 in words is "sixty-seven million, three hundred ninety-eight thousand, eight hundred ninety-four".