20760691 has 8 divisors (see below), whose sum is σ = 23754080. Its totient is φ = 17774208.

The previous prime is 20760671. The next prime is 20760703. The reversal of 20760691 is 19606702.

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

It is a cyclic number.

It is not a de Polignac number, because 20760691 - 2¹³ = 20752499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20760601) 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 7 ways as a sum of consecutive naturals, for example, 10795 + ... + 12571.

It is an arithmetic number, because the mean of its divisors is an integer number (2969260).

Almost surely, 2^20760691 is an apocalyptic number.

20760691 is a deficient number, since it is larger than the sum of its proper divisors (2993389).

20760691 is a wasteful number, since it uses less digits than its factorization.

20760691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 20760691 is about 4556.3901281607. The cubic root of 20760691 is about 274.8404187084.

The spelling of 20760691 in words is "twenty million, seven hundred sixty thousand, six hundred ninety-one".