67691552 has 24 divisors (see below), whose sum is σ = 141108156. Its totient is φ = 31854592.

The previous prime is 67691551. The next prime is 67691557. The reversal of 67691552 is 25519676.

It can be written as a sum of positive squares in 2 ways, for example, as 53523856 + 14167696 = 7316^2 + 3764^2 .

It is not an unprimeable number, because it can be changed into a prime (67691551) 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 3 ways as a sum of consecutive naturals, for example, 61673 + ... + 62760.

Almost surely, 2^67691552 is an apocalyptic number.

It is an amenable number.

67691552 is an abundant number, since it is smaller than the sum of its proper divisors (73416604).

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

67691552 is a wasteful number, since it uses less digits than its factorization.

67691552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124460 (or 124452 counting only the distinct ones).

The product of its digits is 113400, while the sum is 41.

The square root of 67691552 is about 8227.4875873501. The cubic root of 67691552 is about 407.5474284566.

The spelling of 67691552 in words is "sixty-seven million, six hundred ninety-one thousand, five hundred fifty-two".