34120819 has 4 divisors (see below), whose sum is σ = 36127944. Its totient is φ = 32113696.

The previous prime is 34120783. The next prime is 34120829. The reversal of 34120819 is 91802143.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91802143 = 37 ⋅2481139.

It is a cyclic number.

It is not a de Polignac number, because 34120819 - 2¹¹ = 34118771 is a prime.

It is a super-2 number, since 2×34120819² = 2328460578461522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34120829) 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, 1003537 + ... + 1003570.

It is an arithmetic number, because the mean of its divisors is an integer number (9031986).

Almost surely, 2^34120819 is an apocalyptic number.

34120819 is a deficient number, since it is larger than the sum of its proper divisors (2007125).

34120819 is a wasteful number, since it uses less digits than its factorization.

34120819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007124.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 34120819 is about 5841.3028512482. The cubic root of 34120819 is about 324.3444585102.

The spelling of 34120819 in words is "thirty-four million, one hundred twenty thousand, eight hundred nineteen".