34390025 has 6 divisors (see below), whose sum is σ = 42643662. Its totient is φ = 27512000.

The previous prime is 34390009. The next prime is 34390033. The reversal of 34390025 is 52009343.

It can be written as a sum of positive squares in 3 ways, for example, as 4129024 + 30261001 = 2032^2 + 5501^2 .

It is not a de Polignac number, because 34390025 - 2⁴ = 34390009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34389976 and 34390003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 687776 + ... + 687825.

It is an arithmetic number, because the mean of its divisors is an integer number (7107277).

Almost surely, 2^34390025 is an apocalyptic number.

It is an amenable number.

34390025 is a deficient number, since it is larger than the sum of its proper divisors (8253637).

34390025 is a wasteful number, since it uses less digits than its factorization.

34390025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375611 (or 1375606 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 34390025 is about 5864.3008961001. The cubic root of 34390025 is about 325.1952278706.

Adding to 34390025 its reverse (52009343), we get a palindrome (86399368).

The spelling of 34390025 in words is "thirty-four million, three hundred ninety thousand, twenty-five".