33390037 has 2 divisors, whose sum is σ = 33390038. Its totient is φ = 33390036.

The previous prime is 33390029. The next prime is 33390073. The reversal of 33390037 is 73009333.

Together with next prime (33390073) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31427236 + 1962801 = 5606^2 + 1401^2 .

It is a cyclic number.

It is not a de Polignac number, because 33390037 - 2³ = 33390029 is a prime.

It is a super-2 number, since 2×33390037² = 2229789141722738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33389987 and 33390014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33393037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16695018 + 16695019.

It is an arithmetic number, because the mean of its divisors is an integer number (16695019).

Almost surely, 2^33390037 is an apocalyptic number.

It is an amenable number.

33390037 is a deficient number, since it is larger than the sum of its proper divisors (1).

33390037 is an equidigital number, since it uses as much as digits as its factorization.

33390037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 28.

The square root of 33390037 is about 5778.4112868504. The cubic root of 33390037 is about 322.0121807822.

The spelling of 33390037 in words is "thirty-three million, three hundred ninety thousand, thirty-seven".