34845991 has 4 divisors (see below), whose sum is σ = 34975800. Its totient is φ = 34716184.

The previous prime is 34845983. The next prime is 34845997. The reversal of 34845991 is 19954843.

It is a happy number.

34845991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 34845991 - 2³ = 34845983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34845997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64501 + ... + 65038.

It is an arithmetic number, because the mean of its divisors is an integer number (8743950).

Almost surely, 2^34845991 is an apocalyptic number.

34845991 is a deficient number, since it is larger than the sum of its proper divisors (129809).

34845991 is a wasteful number, since it uses less digits than its factorization.

34845991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129808.

The product of its digits is 155520, while the sum is 43.

The square root of 34845991 is about 5903.0492967618. The cubic root of 34845991 is about 326.6261411387.

The spelling of 34845991 in words is "thirty-four million, eight hundred forty-five thousand, nine hundred ninety-one".