34553721 has 8 divisors (see below), whose sum is σ = 46941120. Its totient is φ = 22601072.

The previous prime is 34553711. The next prime is 34553737. The reversal of 34553721 is 12735543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34553721 - 2¹³ = 34545529 is a prime.

It is a super-3 number, since 3×34553721³ (a number of 24 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34553711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108501 + ... + 108818.

It is an arithmetic number, because the mean of its divisors is an integer number (5867640).

Almost surely, 2^34553721 is an apocalyptic number.

It is an amenable number.

34553721 is a deficient number, since it is larger than the sum of its proper divisors (12387399).

34553721 is a wasteful number, since it uses less digits than its factorization.

34553721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217375.

The product of its digits is 12600, while the sum is 30.

The square root of 34553721 is about 5878.2413186258. The cubic root of 34553721 is about 325.7103861436.

The spelling of 34553721 in words is "thirty-four million, five hundred fifty-three thousand, seven hundred twenty-one".