32739997 has 4 divisors (see below), whose sum is σ = 32763420. Its totient is φ = 32716576.

The previous prime is 32739961. The next prime is 32740007. The reversal of 32739997 is 79993723.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79993723 = 313 ⋅255571.

It can be written as a sum of positive squares in 2 ways, for example, as 31236921 + 1503076 = 5589^2 + 1226^2 .

It is a cyclic number.

It is not a de Polignac number, because 32739997 - 2¹¹ = 32737949 is a prime.

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 32739997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32739947) 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, 9472 + ... + 12457.

It is an arithmetic number, because the mean of its divisors is an integer number (8190855).

Almost surely, 2^32739997 is an apocalyptic number.

It is an amenable number.

32739997 is a deficient number, since it is larger than the sum of its proper divisors (23423).

32739997 is a wasteful number, since it uses less digits than its factorization.

32739997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23422.

The product of its digits is 642978, while the sum is 49.

The square root of 32739997 is about 5721.8875382167. The cubic root of 32739997 is about 319.9088184220.

The spelling of 32739997 in words is "thirty-two million, seven hundred thirty-nine thousand, nine hundred ninety-seven".