34221487 has 4 divisors (see below), whose sum is σ = 34320456. Its totient is φ = 34122520.

The previous prime is 34221463. The next prime is 34221491. The reversal of 34221487 is 78412243.

34221487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34221487 - 2⁷ = 34221359 is a prime.

It is a super-4 number, since 4×34221487⁴ (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34221287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48964 + ... + 49657.

It is an arithmetic number, because the mean of its divisors is an integer number (8580114).

Almost surely, 2^34221487 is an apocalyptic number.

34221487 is a deficient number, since it is larger than the sum of its proper divisors (98969).

34221487 is an equidigital number, since it uses as much as digits as its factorization.

34221487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98968.

The product of its digits is 10752, while the sum is 31.

The square root of 34221487 is about 5849.9134181627. The cubic root of 34221487 is about 324.6631207504.

The spelling of 34221487 in words is "thirty-four million, two hundred twenty-one thousand, four hundred eighty-seven".