33630061 has 4 divisors (see below), whose sum is σ = 33651324. Its totient is φ = 33608800.

The previous prime is 33630041. The next prime is 33630083. The reversal of 33630061 is 16003633.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16564900 + 17065161 = 4070^2 + 4131^2 .

It is a cyclic number.

It is not a de Polignac number, because 33630061 - 2¹¹ = 33628013 is a prime.

It is a super-2 number, since 2×33630061² = 2261962005727442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33630001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8050 + ... + 11491.

It is an arithmetic number, because the mean of its divisors is an integer number (8412831).

Almost surely, 2^33630061 is an apocalyptic number.

It is an amenable number.

33630061 is a deficient number, since it is larger than the sum of its proper divisors (21263).

33630061 is a wasteful number, since it uses less digits than its factorization.

33630061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21262.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 33630061 is about 5799.1431263593. The cubic root of 33630061 is about 322.7819332157.

Adding to 33630061 its reverse (16003633), we get a palindrome (49633694).

The spelling of 33630061 in words is "thirty-three million, six hundred thirty thousand, sixty-one".