472201649 has 2 divisors, whose sum is σ = 472201650. Its totient is φ = 472201648.

The previous prime is 472201643. The next prime is 472201747. The reversal of 472201649 is 946102274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 281568400 + 190633249 = 16780^2 + 13807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472201649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (472201643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236100824 + 236100825.

It is an arithmetic number, because the mean of its divisors is an integer number (236100825).

Almost surely, 2^472201649 is an apocalyptic number.

It is an amenable number.

472201649 is a deficient number, since it is larger than the sum of its proper divisors (1).

472201649 is an equidigital number, since it uses as much as digits as its factorization.

472201649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 472201649 is about 21730.2013106184. The cubic root of 472201649 is about 778.7101457549.

The spelling of 472201649 in words is "four hundred seventy-two million, two hundred one thousand, six hundred forty-nine".