67969305 has 12 divisors (see below), whose sum is σ = 117813540. Its totient is φ = 36250272.

The previous prime is 67969273. The next prime is 67969339. The reversal of 67969305 is 50396976.

It can be written as a sum of positive squares in 2 ways, for example, as 51151104 + 16818201 = 7152^2 + 4101^2 .

It is not a de Polignac number, because 67969305 - 2⁵ = 67969273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1510429 = 67969305 / (6 + 7 + 9 + 6 + 9 + 3 + 0 + 5).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 755170 + ... + 755259.

It is an arithmetic number, because the mean of its divisors is an integer number (9817795).

Almost surely, 2^67969305 is an apocalyptic number.

It is an amenable number.

67969305 is a deficient number, since it is larger than the sum of its proper divisors (49844235).

67969305 is a wasteful number, since it uses less digits than its factorization.

67969305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510440 (or 1510437 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 67969305 is about 8244.3498834050. The cubic root of 67969305 is about 408.1040860450.

The spelling of 67969305 in words is "sixty-seven million, nine hundred sixty-nine thousand, three hundred five".