67670090 has 16 divisors (see below), whose sum is σ = 124777800. Its totient is φ = 26407680.

The previous prime is 67670087. The next prime is 67670093. The reversal of 67670090 is 9007676.

It is an interprime number because it is at equal distance from previous prime (67670087) and next prime (67670093).

It can be written as a sum of positive squares in 4 ways, for example, as 55815841 + 11854249 = 7471^2 + 3443^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 67670090.

It is not an unprimeable number, because it can be changed into a prime (67670093) 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, 82115 + ... + 82934.

Almost surely, 2^67670090 is an apocalyptic number.

67670090 is a deficient number, since it is larger than the sum of its proper divisors (57107710).

67670090 is a wasteful number, since it uses less digits than its factorization.

67670090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165097.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 67670090 is about 8226.1831975710. The cubic root of 67670090 is about 407.5043521434.

The spelling of 67670090 in words is "sixty-seven million, six hundred seventy thousand, ninety".