34593921 has 12 divisors (see below), whose sum is σ = 50067472. Its totient is φ = 23017176.

The previous prime is 34593919. The next prime is 34593931. The reversal of 34593921 is 12939543.

It is a happy number.

It is not a de Polignac number, because 34593921 - 2¹ = 34593919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34593931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1410 + ... + 8436.

Almost surely, 2^34593921 is an apocalyptic number.

It is an amenable number.

34593921 is a deficient number, since it is larger than the sum of its proper divisors (15473551).

34593921 is a wasteful number, since it uses less digits than its factorization.

34593921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7580 (or 7577 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 34593921 is about 5881.6597147404. The cubic root of 34593921 is about 325.8366483108.

It can be divided in two parts, 34593 and 921, that multiplied together give a triangular number (31860153 = T₇₉₈₂).

The spelling of 34593921 in words is "thirty-four million, five hundred ninety-three thousand, nine hundred twenty-one".