20764701 has 32 divisors (see below), whose sum is σ = 34300800. Its totient is φ = 12337920.

The previous prime is 20764673. The next prime is 20764703. The reversal of 20764701 is 10746702.

It is not a de Polignac number, because 20764701 - 2⁹ = 20764189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20764703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7531 + ... + 9911.

It is an arithmetic number, because the mean of its divisors is an integer number (1071900).

Almost surely, 2^20764701 is an apocalyptic number.

It is an amenable number.

20764701 is a deficient number, since it is larger than the sum of its proper divisors (13536099).

20764701 is a wasteful number, since it uses less digits than its factorization.

20764701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426 (or 2420 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 20764701 is about 4556.8301482500. The cubic root of 20764701 is about 274.8581130315.

The spelling of 20764701 in words is "twenty million, seven hundred sixty-four thousand, seven hundred one".