67981252 has 12 divisors (see below), whose sum is σ = 120020796. Its totient is φ = 33689600.

The previous prime is 67981217. The next prime is 67981253. The reversal of 67981252 is 25218976.

It can be written as a sum of positive squares in 2 ways, for example, as 21958596 + 46022656 = 4686^2 + 6784^2 .

It is not an unprimeable number, because it can be changed into a prime (67981253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74749 + ... + 75652.

It is an arithmetic number, because the mean of its divisors is an integer number (10001733).

Almost surely, 2^67981252 is an apocalyptic number.

It is an amenable number.

67981252 is a deficient number, since it is larger than the sum of its proper divisors (52039544).

67981252 is a wasteful number, since it uses less digits than its factorization.

67981252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150518 (or 150516 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 67981252 is about 8245.0744083968. The cubic root of 67981252 is about 408.1279955331.

The spelling of 67981252 in words is "sixty-seven million, nine hundred eighty-one thousand, two hundred fifty-two".