449475997 has 4 divisors (see below), whose sum is σ = 453599740. Its totient is φ = 445352256.

The previous prime is 449475979. The next prime is 449476003. The reversal of 449475997 is 799574944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 262634436 + 186841561 = 16206^2 + 13669^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449475997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449475097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2061708 + ... + 2061925.

It is an arithmetic number, because the mean of its divisors is an integer number (113399935).

Almost surely, 2^449475997 is an apocalyptic number.

It is an amenable number.

449475997 is a deficient number, since it is larger than the sum of its proper divisors (4123743).

449475997 is a wasteful number, since it uses less digits than its factorization.

449475997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123742.

The product of its digits is 11430720, while the sum is 58.

The square root of 449475997 is about 21200.8489688503. The cubic root of 449475997 is about 766.0118735761.

The spelling of 449475997 in words is "four hundred forty-nine million, four hundred seventy-five thousand, nine hundred ninety-seven".