450897817 has 8 divisors (see below), whose sum is σ = 477963936. Its totient is φ = 423892032.

The previous prime is 450897781. The next prime is 450897823. The reversal of 450897817 is 718798054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 450897817 - 2¹⁵ = 450865049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450897617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798 + ... + 30040.

It is an arithmetic number, because the mean of its divisors is an integer number (59745492).

Almost surely, 2^450897817 is an apocalyptic number.

It is an amenable number.

450897817 is a deficient number, since it is larger than the sum of its proper divisors (27066119).

450897817 is a wasteful number, since it uses less digits than its factorization.

450897817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30167.

The product of its (nonzero) digits is 564480, while the sum is 49.

The square root of 450897817 is about 21234.3546405348. The cubic root of 450897817 is about 766.8187276412.

The spelling of 450897817 in words is "four hundred fifty million, eight hundred ninety-seven thousand, eight hundred seventeen".