34527421 has 2 divisors, whose sum is σ = 34527422. Its totient is φ = 34527420.

The previous prime is 34527377. The next prime is 34527443. The reversal of 34527421 is 12472543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32319225 + 2208196 = 5685^2 + 1486^2 .

It is a cyclic number.

It is not a de Polignac number, because 34527421 - 2⁷ = 34527293 is a prime.

It is a super-2 number, since 2×34527421² = 2384285601822482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 34527421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34597421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17263710 + 17263711.

It is an arithmetic number, because the mean of its divisors is an integer number (17263711).

Almost surely, 2^34527421 is an apocalyptic number.

It is an amenable number.

34527421 is a deficient number, since it is larger than the sum of its proper divisors (1).

34527421 is an equidigital number, since it uses as much as digits as its factorization.

34527421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 28.

The square root of 34527421 is about 5876.0038291342. The cubic root of 34527421 is about 325.6277287899.

Adding to 34527421 its reverse (12472543), we get a palindrome (46999964).

The spelling of 34527421 in words is "thirty-four million, five hundred twenty-seven thousand, four hundred twenty-one".