20264347 has 2 divisors, whose sum is σ = 20264348. Its totient is φ = 20264346.

The previous prime is 20264341. The next prime is 20264371. The reversal of 20264347 is 74346202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20264347 - 2³ = 20264339 is a prime.

It is not a weakly prime, because it can be changed into another prime (20264341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10132173 + 10132174.

It is an arithmetic number, because the mean of its divisors is an integer number (10132174).

Almost surely, 2^20264347 is an apocalyptic number.

20264347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20264347 is an equidigital number, since it uses as much as digits as its factorization.

20264347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 20264347 is about 4501.5938288566. The cubic root of 20264347 is about 272.6324446648.

The spelling of 20264347 in words is "twenty million, two hundred sixty-four thousand, three hundred forty-seven".