20732965 has 8 divisors (see below), whose sum is σ = 27141408. Its totient is φ = 15078480.

The previous prime is 20732947. The next prime is 20732983. The reversal of 20732965 is 56923702.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20732947) and next prime (20732983).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20732965 - 2¹¹ = 20730917 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 20732965.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188427 + ... + 188536.

It is an arithmetic number, because the mean of its divisors is an integer number (3392676).

Almost surely, 2^20732965 is an apocalyptic number.

It is an amenable number.

20732965 is a deficient number, since it is larger than the sum of its proper divisors (6408443).

20732965 is a wasteful number, since it uses less digits than its factorization.

20732965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376979.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 20732965 is about 4553.3465714790. The cubic root of 20732965 is about 274.7180139796.

The spelling of 20732965 in words is "twenty million, seven hundred thirty-two thousand, nine hundred sixty-five".