33949879 has 2 divisors, whose sum is σ = 33949880. Its totient is φ = 33949878.

The previous prime is 33949859. The next prime is 33949897. The reversal of 33949879 is 97894933.

Together with next prime (33949897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33949879 - 2²¹ = 31852727 is a prime.

It is a super-2 number, since 2×33949879² = 2305188568229282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33949819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16974939 + 16974940.

It is an arithmetic number, because the mean of its divisors is an integer number (16974940).

Almost surely, 2^33949879 is an apocalyptic number.

33949879 is a deficient number, since it is larger than the sum of its proper divisors (1).

33949879 is an equidigital number, since it uses as much as digits as its factorization.

33949879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 52.

The square root of 33949879 is about 5826.6524694716. The cubic root of 33949879 is about 323.8019130341.

The spelling of 33949879 in words is "thirty-three million, nine hundred forty-nine thousand, eight hundred seventy-nine".