20854007 has 2 divisors, whose sum is σ = 20854008. Its totient is φ = 20854006.

The previous prime is 20853991. The next prime is 20854027. The reversal of 20854007 is 70045802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20854007 - 2⁴ = 20853991 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20854027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10427003 + 10427004.

It is an arithmetic number, because the mean of its divisors is an integer number (10427004).

Almost surely, 2^20854007 is an apocalyptic number.

20854007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20854007 is an equidigital number, since it uses as much as digits as its factorization.

20854007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 20854007 is about 4566.6187710384. The cubic root of 20854007 is about 275.2515912423.

Adding to 20854007 its reverse (70045802), we get a palindrome (90899809).

The spelling of 20854007 in words is "twenty million, eight hundred fifty-four thousand, seven".