34157643 has 8 divisors (see below), whose sum is σ = 49046928. Its totient is φ = 21020064.

The previous prime is 34157593. The next prime is 34157659. The reversal of 34157643 is 34675143.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 34157643 - 2¹² = 34153547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34157663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437880 + ... + 437957.

It is an arithmetic number, because the mean of its divisors is an integer number (6130866).

Almost surely, 2^34157643 is an apocalyptic number.

34157643 is a deficient number, since it is larger than the sum of its proper divisors (14889285).

34157643 is a wasteful number, since it uses less digits than its factorization.

34157643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875853.

The product of its digits is 30240, while the sum is 33.

The square root of 34157643 is about 5844.4540378037. The cubic root of 34157643 is about 324.4610966473.

The spelling of 34157643 in words is "thirty-four million, one hundred fifty-seven thousand, six hundred forty-three".