67031369 has 2 divisors, whose sum is σ = 67031370. Its totient is φ = 67031368.

The previous prime is 67031317. The next prime is 67031387. The reversal of 67031369 is 96313076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64192144 + 2839225 = 8012^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 67031369 - 2¹² = 67027273 is a prime.

It is a super-2 number, since 2×67031369² = 8986408860028322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67039369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33515684 + 33515685.

It is an arithmetic number, because the mean of its divisors is an integer number (33515685).

Almost surely, 2^67031369 is an apocalyptic number.

It is an amenable number.

67031369 is a deficient number, since it is larger than the sum of its proper divisors (1).

67031369 is an equidigital number, since it uses as much as digits as its factorization.

67031369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 67031369 is about 8187.2687142905. The cubic root of 67031369 is about 406.2181865738.

The spelling of 67031369 in words is "sixty-seven million, thirty-one thousand, three hundred sixty-nine".