33400093 has 2 divisors, whose sum is σ = 33400094. Its totient is φ = 33400092.

The previous prime is 33400091. The next prime is 33400139. The reversal of 33400093 is 39000433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30769209 + 2630884 = 5547^2 + 1622^2 .

It is a cyclic number.

It is not a de Polignac number, because 33400093 - 2¹ = 33400091 is a prime.

It is a super-2 number, since 2×33400093² = 2231132424817298, which contains 22 as substring.

Together with 33400091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33400091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16700046 + 16700047.

It is an arithmetic number, because the mean of its divisors is an integer number (16700047).

Almost surely, 2^33400093 is an apocalyptic number.

It is an amenable number.

33400093 is a deficient number, since it is larger than the sum of its proper divisors (1).

33400093 is an equidigital number, since it uses as much as digits as its factorization.

33400093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 33400093 is about 5779.2813567086. The cubic root of 33400093 is about 322.0445040914.

The spelling of 33400093 in words is "thirty-three million, four hundred thousand, ninety-three".