20754623 has 2 divisors, whose sum is σ = 20754624. Its totient is φ = 20754622.

The previous prime is 20754619. The next prime is 20754653. The reversal of 20754623 is 32645702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20754623 - 2² = 20754619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20754653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10377311 + 10377312.

It is an arithmetic number, because the mean of its divisors is an integer number (10377312).

Almost surely, 2^20754623 is an apocalyptic number.

20754623 is a deficient number, since it is larger than the sum of its proper divisors (1).

20754623 is an equidigital number, since it uses as much as digits as its factorization.

20754623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 20754623 is about 4555.7242014854. The cubic root of 20754623 is about 274.8136390254.

The spelling of 20754623 in words is "twenty million, seven hundred fifty-four thousand, six hundred twenty-three".