34331421 has 4 divisors (see below), whose sum is σ = 45775232. Its totient is φ = 22887612.

The previous prime is 34331399. The next prime is 34331441. The reversal of 34331421 is 12413343.

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: 12413343 = 3 ⋅4137781.

It is a de Polignac number, because none of the positive numbers 2^k-34331421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34331441) 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, 5721901 + ... + 5721906.

It is an arithmetic number, because the mean of its divisors is an integer number (11443808).

Almost surely, 2^34331421 is an apocalyptic number.

It is an amenable number.

34331421 is a deficient number, since it is larger than the sum of its proper divisors (11443811).

34331421 is a wasteful number, since it uses less digits than its factorization.

34331421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11443810.

The product of its digits is 864, while the sum is 21.

The square root of 34331421 is about 5859.3020915464. The cubic root of 34331421 is about 325.0104012450.

Adding to 34331421 its reverse (12413343), we get a palindrome (46744764).

The spelling of 34331421 in words is "thirty-four million, three hundred thirty-one thousand, four hundred twenty-one".