67897472 has 32 divisors (see below), whose sum is σ = 141151680. Its totient is φ = 32471296.

The previous prime is 67897457. The next prime is 67897499. The reversal of 67897472 is 27479876.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×67897472² = 9220133407981568, 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 67897472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8588 + ... + 14475.

It is an arithmetic number, because the mean of its divisors is an integer number (4410990).

Almost surely, 2^67897472 is an apocalyptic number.

It is an amenable number.

67897472 is an abundant number, since it is smaller than the sum of its proper divisors (73254208).

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

67897472 is a wasteful number, since it uses less digits than its factorization.

67897472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23100 (or 23088 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 50.

The square root of 67897472 is about 8239.9922330060. The cubic root of 67897472 is about 407.9602678213.

The spelling of 67897472 in words is "sixty-seven million, eight hundred ninety-seven thousand, four hundred seventy-two".