33399999 has 8 divisors (see below), whose sum is σ = 49481520. Its totient is φ = 22266648.

The previous prime is 33399991. The next prime is 33400021. The reversal of 33399999 is 99999333.

It is not a de Polignac number, because 33399999 - 2³ = 33399991 is a prime.

It is a super-2 number, since 2×33399999² = 2231119866400002, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

33399999 is a modest number, since divided by 9999 gives 3339 as remainder.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33399991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618492 + ... + 618545.

It is an arithmetic number, because the mean of its divisors is an integer number (6185190).

Almost surely, 2^33399999 is an apocalyptic number.

33399999 is a deficient number, since it is larger than the sum of its proper divisors (16081521).

33399999 is a wasteful number, since it uses less digits than its factorization.

33399999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237046 (or 1237040 counting only the distinct ones).

The product of its digits is 1594323, while the sum is 54.

The square root of 33399999 is about 5779.2732242039. The cubic root of 33399999 is about 322.0442019744.

The spelling of 33399999 in words is "thirty-three million, three hundred ninety-nine thousand, nine hundred ninety-nine".