34873621 has 4 divisors (see below), whose sum is σ = 34927200. Its totient is φ = 34820044.

The previous prime is 34873609. The next prime is 34873627. The reversal of 34873621 is 12637843.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 34873621 - 2¹⁵ = 34840853 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 (34873627) 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, 25801 + ... + 27118.

It is an arithmetic number, because the mean of its divisors is an integer number (8731800).

Almost surely, 2^34873621 is an apocalyptic number.

It is an amenable number.

34873621 is a deficient number, since it is larger than the sum of its proper divisors (53579).

34873621 is an equidigital number, since it uses as much as digits as its factorization.

34873621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53578.

The product of its digits is 24192, while the sum is 34.

The square root of 34873621 is about 5905.3891489046. The cubic root of 34873621 is about 326.7124475381.

The spelling of 34873621 in words is "thirty-four million, eight hundred seventy-three thousand, six hundred twenty-one".