34047021 has 8 divisors (see below), whose sum is σ = 46860544. Its totient is φ = 21965760.

The previous prime is 34047019. The next prime is 34047037. The reversal of 34047021 is 12074043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 34047021 - 2¹ = 34047019 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 (34047011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182956 + ... + 183141.

It is an arithmetic number, because the mean of its divisors is an integer number (5857568).

Almost surely, 2^34047021 is an apocalyptic number.

34047021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

34047021 is a deficient number, since it is larger than the sum of its proper divisors (12813523).

34047021 is a wasteful number, since it uses less digits than its factorization.

34047021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366131.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 34047021 is about 5834.9825192540. The cubic root of 34047021 is about 324.1104542629.

The spelling of 34047021 in words is "thirty-four million, forty-seven thousand, twenty-one".