33390739 has 2 divisors, whose sum is σ = 33390740. Its totient is φ = 33390738.

The previous prime is 33390697. The next prime is 33390767. The reversal of 33390739 is 93709333.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33390739 - 2¹⁹ = 32866451 is a prime.

It is a super-2 number, since 2×33390739² = 2229882901932242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33390698 and 33390707.

It is not a weakly prime, because it can be changed into another prime (33390139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16695369 + 16695370.

It is an arithmetic number, because the mean of its divisors is an integer number (16695370).

Almost surely, 2^33390739 is an apocalyptic number.

33390739 is a deficient number, since it is larger than the sum of its proper divisors (1).

33390739 is an equidigital number, since it uses as much as digits as its factorization.

33390739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45927, while the sum is 37.

The square root of 33390739 is about 5778.4720298709. The cubic root of 33390739 is about 322.0144374530.

The spelling of 33390739 in words is "thirty-three million, three hundred ninety thousand, seven hundred thirty-nine".