34020215 has 4 divisors (see below), whose sum is σ = 40824264. Its totient is φ = 27216168.

The previous prime is 34020209. The next prime is 34020221. The reversal of 34020215 is 51202043.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (34020209) and next prime (34020221).

It is a cyclic number.

It is not a de Polignac number, because 34020215 - 2⁸ = 34019959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34020193 and 34020202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3402017 + ... + 3402026.

It is an arithmetic number, because the mean of its divisors is an integer number (10206066).

Almost surely, 2^34020215 is an apocalyptic number.

34020215 is a deficient number, since it is larger than the sum of its proper divisors (6804049).

34020215 is an equidigital number, since it uses as much as digits as its factorization.

34020215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6804048.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 34020215 is about 5832.6850592159. The cubic root of 34020215 is about 324.0253720668.

Adding to 34020215 its reverse (51202043), we get a palindrome (85222258).

The spelling of 34020215 in words is "thirty-four million, twenty thousand, two hundred fifteen".