33998725 has 12 divisors (see below), whose sum is σ = 44638884. Its totient is φ = 25598720.

The previous prime is 33998711. The next prime is 33998737. The reversal of 33998725 is 52789933.

It can be written as a sum of positive squares in 6 ways, for example, as 1747684 + 32251041 = 1322^2 + 5679^2 .

It is not a de Polignac number, because 33998725 - 2⁹ = 33998213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39574 + ... + 40423.

It is an arithmetic number, because the mean of its divisors is an integer number (3719907).

Almost surely, 2^33998725 is an apocalyptic number.

It is an amenable number.

33998725 is a deficient number, since it is larger than the sum of its proper divisors (10640159).

33998725 is a wasteful number, since it uses less digits than its factorization.

33998725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80024 (or 80019 counting only the distinct ones).

The product of its digits is 408240, while the sum is 46.

The square root of 33998725 is about 5830.8425634723. The cubic root of 33998725 is about 323.9571305624.

The spelling of 33998725 in words is "thirty-three million, nine hundred ninety-eight thousand, seven hundred twenty-five".