34375021 has 4 divisors (see below), whose sum is σ = 34392544. Its totient is φ = 34357500.

The previous prime is 34375013. The next prime is 34375049. The reversal of 34375021 is 12057343.

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: 12057343 = 19 ⋅634597.

It is a cyclic number.

It is not a de Polignac number, because 34375021 - 2³ = 34375013 is a prime.

It is a super-3 number, since 3×34375021³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34375721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5385 + ... + 9886.

It is an arithmetic number, because the mean of its divisors is an integer number (8598136).

Almost surely, 2^34375021 is an apocalyptic number.

It is an amenable number.

34375021 is a deficient number, since it is larger than the sum of its proper divisors (17523).

34375021 is a wasteful number, since it uses less digits than its factorization.

34375021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17522.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 34375021 is about 5863.0214906650. The cubic root of 34375021 is about 325.1479279248.

The spelling of 34375021 in words is "thirty-four million, three hundred seventy-five thousand, twenty-one".