34856421 has 4 divisors (see below), whose sum is σ = 46475232. Its totient is φ = 23237612.

The previous prime is 34856417. The next prime is 34856441. The reversal of 34856421 is 12465843.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34856421 - 2² = 34856417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34856441) 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, 5809401 + ... + 5809406.

It is an arithmetic number, because the mean of its divisors is an integer number (11618808).

Almost surely, 2^34856421 is an apocalyptic number.

It is an amenable number.

34856421 is a deficient number, since it is larger than the sum of its proper divisors (11618811).

34856421 is a wasteful number, since it uses less digits than its factorization.

34856421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11618810.

The product of its digits is 23040, while the sum is 33.

The square root of 34856421 is about 5903.9326723803. The cubic root of 34856421 is about 326.6587261479.

The spelling of 34856421 in words is "thirty-four million, eight hundred fifty-six thousand, four hundred twenty-one".