20763164 has 6 divisors (see below), whose sum is σ = 36335544. Its totient is φ = 10381580.

The previous prime is 20763163. The next prime is 20763167. The reversal of 20763164 is 46136702.

It is a super-2 number, since 2×20763164² = 862217958581792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20763163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2595392 + ... + 2595399.

It is an arithmetic number, because the mean of its divisors is an integer number (6055924).

Almost surely, 2^20763164 is an apocalyptic number.

It is an amenable number.

20763164 is a deficient number, since it is larger than the sum of its proper divisors (15572380).

20763164 is a wasteful number, since it uses less digits than its factorization.

20763164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190795 (or 5190793 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 20763164 is about 4556.6614971929. The cubic root of 20763164 is about 274.8513312123.

Adding to 20763164 its reverse (46136702), we get a palindrome (66899866).

The spelling of 20763164 in words is "twenty million, seven hundred sixty-three thousand, one hundred sixty-four".