20752086 has 16 divisors (see below), whose sum is σ = 41586624. Its totient is φ = 6903624.

The previous prime is 20752073. The next prime is 20752091. The reversal of 20752086 is 68025702.

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, 121 + ... + 6443.

It is an arithmetic number, because the mean of its divisors is an integer number (2599164).

Almost surely, 2^20752086 is an apocalyptic number.

20752086 is an abundant number, since it is smaller than the sum of its proper divisors (20834538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20752086 is a wasteful number, since it uses less digits than its factorization.

20752086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 20752086 is about 4555.4457520642. The cubic root of 20752086 is about 274.8024410285.

Adding to 20752086 its reverse (68025702), we get a palindrome (88777788).

The spelling of 20752086 in words is "twenty million, seven hundred fifty-two thousand, eighty-six".