34712021 has 4 divisors (see below), whose sum is σ = 34985472. Its totient is φ = 34438572.

The previous prime is 34712017. The next prime is 34712023. The reversal of 34712021 is 12021743.

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: 12021743 = 67 ⋅179429.

It is a cyclic number.

It is not a de Polignac number, because 34712021 - 2² = 34712017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34711984 and 34712002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34712023) 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, 136535 + ... + 136788.

It is an arithmetic number, because the mean of its divisors is an integer number (8746368).

Almost surely, 2^34712021 is an apocalyptic number.

It is an amenable number.

34712021 is a deficient number, since it is larger than the sum of its proper divisors (273451).

34712021 is a wasteful number, since it uses less digits than its factorization.

34712021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273450.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 34712021 is about 5891.6908438919. The cubic root of 34712021 is about 326.2070178202.

Adding to 34712021 its reverse (12021743), we get a palindrome (46733764).

The spelling of 34712021 in words is "thirty-four million, seven hundred twelve thousand, twenty-one".