34526021 has 4 divisors (see below), whose sum is σ = 36343200. Its totient is φ = 32708844.

The previous prime is 34526017. The next prime is 34526029. The reversal of 34526021 is 12062543.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12062543 = 1361 ⋅8863.

It is a cyclic number.

It is not a de Polignac number, because 34526021 - 2² = 34526017 is a prime.

It is a super-2 number, since 2×34526021² = 2384092252184882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34526029) 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, 908561 + ... + 908598.

It is an arithmetic number, because the mean of its divisors is an integer number (9085800).

Almost surely, 2^34526021 is an apocalyptic number.

It is an amenable number.

34526021 is a deficient number, since it is larger than the sum of its proper divisors (1817179).

34526021 is a wasteful number, since it uses less digits than its factorization.

34526021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817178.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 34526021 is about 5875.8846993453. The cubic root of 34526021 is about 325.6233276022.

Adding to 34526021 its reverse (12062543), we get a palindrome (46588564).

The spelling of 34526021 in words is "thirty-four million, five hundred twenty-six thousand, twenty-one".