33463993 has 2 divisors, whose sum is σ = 33463994. Its totient is φ = 33463992.

The previous prime is 33463987. The next prime is 33464029. The reversal of 33463993 is 39936433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24920064 + 8543929 = 4992^2 + 2923^2 .

It is a cyclic number.

It is not a de Polignac number, because 33463993 - 2¹³ = 33455801 is a prime.

It is a super-2 number, since 2×33463993² = 2239677655008098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33463393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16731996 + 16731997.

It is an arithmetic number, because the mean of its divisors is an integer number (16731997).

Almost surely, 2^33463993 is an apocalyptic number.

It is an amenable number.

33463993 is a deficient number, since it is larger than the sum of its proper divisors (1).

33463993 is an equidigital number, since it uses as much as digits as its factorization.

33463993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157464, while the sum is 40.

The square root of 33463993 is about 5784.8070840781. The cubic root of 33463993 is about 322.2497483729.

The spelling of 33463993 in words is "thirty-three million, four hundred sixty-three thousand, nine hundred ninety-three".