34948221 has 24 divisors (see below), whose sum is σ = 59135904. Its totient is φ = 18154080.

The previous prime is 34948189. The next prime is 34948231. The reversal of 34948221 is 12284943.

It is not a de Polignac number, because 34948221 - 2⁵ = 34948189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34948231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9190 + ... + 12423.

It is an arithmetic number, because the mean of its divisors is an integer number (2463996).

Almost surely, 2^34948221 is an apocalyptic number.

It is an amenable number.

34948221 is a deficient number, since it is larger than the sum of its proper divisors (24187683).

34948221 is a wasteful number, since it uses less digits than its factorization.

34948221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21641 (or 21634 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 34948221 is about 5911.7020391762. The cubic root of 34948221 is about 326.9452442242.

Subtracting from 34948221 its reverse (12284943), we obtain a triangular number (22663278 = T₆₇₃₂).

The spelling of 34948221 in words is "thirty-four million, nine hundred forty-eight thousand, two hundred twenty-one".