67331889 has 12 divisors (see below), whose sum is σ = 99092916. Its totient is φ = 44040672.

The previous prime is 67331867. The next prime is 67331903. The reversal of 67331889 is 98813376.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43125489 + 24206400 = 6567^2 + 4920^2 .

It is not a de Polignac number, because 67331889 - 2⁵ = 67331857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67331809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70102 + ... + 71055.

It is an arithmetic number, because the mean of its divisors is an integer number (8257743).

Almost surely, 2^67331889 is an apocalyptic number.

It is an amenable number.

67331889 is a deficient number, since it is larger than the sum of its proper divisors (31761027).

67331889 is a wasteful number, since it uses less digits than its factorization.

67331889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141216 (or 141213 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 67331889 is about 8205.6010748756. The cubic root of 67331889 is about 406.8243441081.

The spelling of 67331889 in words is "sixty-seven million, three hundred thirty-one thousand, eight hundred eighty-nine".