33980231 has 2 divisors, whose sum is σ = 33980232. Its totient is φ = 33980230.

The previous prime is 33980213. The next prime is 33980239. The reversal of 33980231 is 13208933.

Together with previous prime (33980213) 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 33980231 - 2²² = 29785927 is a prime.

It is a super-2 number, since 2×33980231² = 2309312197626722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33980194 and 33980203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33980239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16990115 + 16990116.

It is an arithmetic number, because the mean of its divisors is an integer number (16990116).

Almost surely, 2^33980231 is an apocalyptic number.

33980231 is a deficient number, since it is larger than the sum of its proper divisors (1).

33980231 is an equidigital number, since it uses as much as digits as its factorization.

33980231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 33980231 is about 5829.2564705973. The cubic root of 33980231 is about 323.8983798314.

The spelling of 33980231 in words is "thirty-three million, nine hundred eighty thousand, two hundred thirty-one".