34285521 has 4 divisors (see below), whose sum is σ = 45714032. Its totient is φ = 22857012.

The previous prime is 34285499. The next prime is 34285529. The reversal of 34285521 is 12558243.

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 not a de Polignac number, because 34285521 - 2⁷ = 34285393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34285529) 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, 5714251 + ... + 5714256.

It is an arithmetic number, because the mean of its divisors is an integer number (11428508).

Almost surely, 2^34285521 is an apocalyptic number.

It is an amenable number.

34285521 is a deficient number, since it is larger than the sum of its proper divisors (11428511).

34285521 is a wasteful number, since it uses less digits than its factorization.

34285521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11428510.

The product of its digits is 9600, while the sum is 30.

The square root of 34285521 is about 5855.3839327580. The cubic root of 34285521 is about 324.8654938472.

The spelling of 34285521 in words is "thirty-four million, two hundred eighty-five thousand, five hundred twenty-one".