495445997 has 2 divisors, whose sum is σ = 495445998. Its totient is φ = 495445996.

The previous prime is 495445981. The next prime is 495446053. The reversal of 495445997 is 799544594.

It is an a-pointer prime, because the next prime (495446053) can be obtained adding 495445997 to its sum of digits (56).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491686276 + 3759721 = 22174^2 + 1939^2 .

It is a cyclic number.

It is not a de Polignac number, because 495445997 - 2⁴ = 495445981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495445397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247722998 + 247722999.

It is an arithmetic number, because the mean of its divisors is an integer number (247722999).

Almost surely, 2^495445997 is an apocalyptic number.

It is an amenable number.

495445997 is a deficient number, since it is larger than the sum of its proper divisors (1).

495445997 is an equidigital number, since it uses as much as digits as its factorization.

495445997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 56.

The square root of 495445997 is about 22258.6162418062. The cubic root of 495445997 is about 791.2834965733.

The spelling of 495445997 in words is "four hundred ninety-five million, four hundred forty-five thousand, nine hundred ninety-seven".