34878667 has 2 divisors, whose sum is σ = 34878668. Its totient is φ = 34878666.

The previous prime is 34878643. The next prime is 34878671. The reversal of 34878667 is 76687843.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34878667 - 2⁷ = 34878539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34878667.

It is not a weakly prime, because it can be changed into another prime (34878607) 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 as a sum of consecutive naturals, namely, 17439333 + 17439334.

It is an arithmetic number, because the mean of its divisors is an integer number (17439334).

Almost surely, 2^34878667 is an apocalyptic number.

34878667 is a deficient number, since it is larger than the sum of its proper divisors (1).

34878667 is an equidigital number, since it uses as much as digits as its factorization.

34878667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 49.

The square root of 34878667 is about 5905.8163703251. The cubic root of 34878667 is about 326.7282045435.

The spelling of 34878667 in words is "thirty-four million, eight hundred seventy-eight thousand, six hundred sixty-seven".