67961280 has 56 divisors (see below), whose sum is σ = 215780112. Its totient is φ = 18122752.

The previous prime is 67961273. The next prime is 67961287. The reversal of 67961280 is 8216976.

It is an interprime number because it is at equal distance from previous prime (67961273) and next prime (67961287).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67961287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34437 + ... + 36356.

Almost surely, 2^67961280 is an apocalyptic number.

67961280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67961280 is an abundant number, since it is smaller than the sum of its proper divisors (147818832).

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

67961280 is a wasteful number, since it uses less digits than its factorization.

67961280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70813 (or 70803 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 67961280 is about 8243.8631720814. The cubic root of 67961280 is about 408.0880240682.

The spelling of 67961280 in words is "sixty-seven million, nine hundred sixty-one thousand, two hundred eighty".