20374723 has 2 divisors, whose sum is σ = 20374724. Its totient is φ = 20374722.

The previous prime is 20374709. The next prime is 20374763. The reversal of 20374723 is 32747302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20374723 - 2¹³ = 20366531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20374691 and 20374700.

It is not a weakly prime, because it can be changed into another prime (20374763) 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 as a sum of consecutive naturals, namely, 10187361 + 10187362.

It is an arithmetic number, because the mean of its divisors is an integer number (10187362).

Almost surely, 2^20374723 is an apocalyptic number.

20374723 is a deficient number, since it is larger than the sum of its proper divisors (1).

20374723 is an equidigital number, since it uses as much as digits as its factorization.

20374723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 28.

The square root of 20374723 is about 4513.8368379905. The cubic root of 20374723 is about 273.1265408260.

The spelling of 20374723 in words is "twenty million, three hundred seventy-four thousand, seven hundred twenty-three".