67897240 has 32 divisors (see below), whose sum is σ = 155656080. Its totient is φ = 26645632.

The previous prime is 67897231. The next prime is 67897243. The reversal of 67897240 is 4279876.

It is a super-2 number, since 2×67897240² = 9220070399235200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67897243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13894 + ... + 18133.

Almost surely, 2^67897240 is an apocalyptic number.

It is an amenable number.

67897240 is an abundant number, since it is smaller than the sum of its proper divisors (87758840).

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

67897240 is a wasteful number, since it uses less digits than its factorization.

67897240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32091 (or 32087 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 67897240 is about 8239.9781553109. The cubic root of 67897240 is about 407.9598031653.

The spelling of 67897240 in words is "sixty-seven million, eight hundred ninety-seven thousand, two hundred forty".