33993473 has 2 divisors, whose sum is σ = 33993474. Its totient is φ = 33993472.

The previous prime is 33993467. The next prime is 33993493. The reversal of 33993473 is 37439933.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33965584 + 27889 = 5828^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 33993473 - 2⁴ = 33993457 is a prime.

It is equal to p_2088995 and since 33993473 and 2088995 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33993473.

It is not a weakly prime, because it can be changed into another prime (33993493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16996736 + 16996737.

It is an arithmetic number, because the mean of its divisors is an integer number (16996737).

Almost surely, 2^33993473 is an apocalyptic number.

It is an amenable number.

33993473 is a deficient number, since it is larger than the sum of its proper divisors (1).

33993473 is an equidigital number, since it uses as much as digits as its factorization.

33993473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 183708, while the sum is 41.

The square root of 33993473 is about 5830.3921823493. The cubic root of 33993473 is about 323.9404484616.

The spelling of 33993473 in words is "thirty-three million, nine hundred ninety-three thousand, four hundred seventy-three".