33330001 has 4 divisors (see below), whose sum is σ = 33542452. Its totient is φ = 33117552.

The previous prime is 33329999. The next prime is 33330023. The reversal of 33330001 is 10003333.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10003333 = 89 ⋅112397.

It can be written as a sum of positive squares in 2 ways, for example, as 15681600 + 17648401 = 3960^2 + 4201^2 .

It is a cyclic number.

It is not a de Polignac number, because 33330001 - 2¹ = 33329999 is a prime.

It is a super-2 number, since 2×33330001² = 2221777933320002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33330041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105990 + ... + 106303.

It is an arithmetic number, because the mean of its divisors is an integer number (8385613).

Almost surely, 2^33330001 is an apocalyptic number.

It is an amenable number.

33330001 is a deficient number, since it is larger than the sum of its proper divisors (212451).

33330001 is a wasteful number, since it uses less digits than its factorization.

33330001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212450.

The product of its (nonzero) digits is 81, while the sum is 13.

The square root of 33330001 is about 5773.2140961513. The cubic root of 33330001 is about 321.8190700696.

Adding to 33330001 its reverse (10003333), we get a palindrome (43333334).

The spelling of 33330001 in words is "thirty-three million, three hundred thirty thousand, one".