34997779 has 4 divisors (see below), whose sum is σ = 35143240. Its totient is φ = 34852320.

The previous prime is 34997759. The next prime is 34997801. The reversal of 34997779 is 97779943.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34997779 - 2⁹ = 34997267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34997759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72369 + ... + 72850.

It is an arithmetic number, because the mean of its divisors is an integer number (8785810).

Almost surely, 2^34997779 is an apocalyptic number.

34997779 is a deficient number, since it is larger than the sum of its proper divisors (145461).

34997779 is a wasteful number, since it uses less digits than its factorization.

34997779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145460.

The product of its digits is 3000564, while the sum is 55.

The square root of 34997779 is about 5915.8920713617. The cubic root of 34997779 is about 327.0997117884.

The spelling of 34997779 in words is "thirty-four million, nine hundred ninety-seven thousand, seven hundred seventy-nine".