34758021 has 16 divisors (see below), whose sum is σ = 47347200. Its totient is φ = 22674288.

The previous prime is 34758019. The next prime is 34758067. The reversal of 34758021 is 12085743.

It is not a de Polignac number, because 34758021 - 2¹ = 34758019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34758021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34758091) 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 15 ways as a sum of consecutive naturals, for example, 63270 + ... + 63816.

It is an arithmetic number, because the mean of its divisors is an integer number (2959200).

Almost surely, 2^34758021 is an apocalyptic number.

It is an amenable number.

34758021 is a deficient number, since it is larger than the sum of its proper divisors (12589179).

34758021 is a wasteful number, since it uses less digits than its factorization.

34758021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 34758021 is about 5895.5933543622. The cubic root of 34758021 is about 326.3510495694.

The spelling of 34758021 in words is "thirty-four million, seven hundred fifty-eight thousand, twenty-one".