34401643 has 4 divisors (see below), whose sum is σ = 34448688. Its totient is φ = 34354600.

The previous prime is 34401641. The next prime is 34401707. The reversal of 34401643 is 34610443.

It is a happy number.

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 34401643 - 2¹ = 34401641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34401641) 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, 22408 + ... + 23893.

It is an arithmetic number, because the mean of its divisors is an integer number (8612172).

Almost surely, 2^34401643 is an apocalyptic number.

34401643 is a deficient number, since it is larger than the sum of its proper divisors (47045).

34401643 is an equidigital number, since it uses as much as digits as its factorization.

34401643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47044.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 34401643 is about 5865.2913823612. The cubic root of 34401643 is about 325.2318440384.

The spelling of 34401643 in words is "thirty-four million, four hundred one thousand, six hundred forty-three".