33648997 has 4 divisors (see below), whose sum is σ = 33850656. Its totient is φ = 33447340.

The previous prime is 33648949. The next prime is 33649037. The reversal of 33648997 is 79984633.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33648997 - 2⁷ = 33648869 is a prime.

It is a super-2 number, since 2×33648997² = 2264509998212018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33648997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33948997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100579 + ... + 100912.

It is an arithmetic number, because the mean of its divisors is an integer number (8462664).

Almost surely, 2^33648997 is an apocalyptic number.

It is an amenable number.

33648997 is a deficient number, since it is larger than the sum of its proper divisors (201659).

33648997 is a wasteful number, since it uses less digits than its factorization.

33648997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201658.

The product of its digits is 979776, while the sum is 49.

The square root of 33648997 is about 5800.7755515965. The cubic root of 33648997 is about 322.8425045386.

The spelling of 33648997 in words is "thirty-three million, six hundred forty-eight thousand, nine hundred ninety-seven".