34420947 has 16 divisors (see below), whose sum is σ = 50170368. Its totient is φ = 20818080.

The previous prime is 34420933. The next prime is 34420957. The reversal of 34420947 is 74902443.

It is not a de Polignac number, because 34420947 - 2¹⁰ = 34419923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (34420927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23478 + ... + 24900.

It is an arithmetic number, because the mean of its divisors is an integer number (3135648).

Almost surely, 2^34420947 is an apocalyptic number.

34420947 is a deficient number, since it is larger than the sum of its proper divisors (15749421).

34420947 is a wasteful number, since it uses less digits than its factorization.

34420947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 34420947 is about 5866.9367646158. The cubic root of 34420947 is about 325.2926657610.

The spelling of 34420947 in words is "thirty-four million, four hundred twenty thousand, nine hundred forty-seven".