450820697 has 4 divisors (see below), whose sum is σ = 451441536. Its totient is φ = 450199860.

The previous prime is 450820687. The next prime is 450820717. The reversal of 450820697 is 796028054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 450820697 - 2⁸ = 450820441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450820607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309329 + ... + 310782.

It is an arithmetic number, because the mean of its divisors is an integer number (112860384).

Almost surely, 2^450820697 is an apocalyptic number.

It is an amenable number.

450820697 is a deficient number, since it is larger than the sum of its proper divisors (620839).

450820697 is an equidigital number, since it uses as much as digits as its factorization.

450820697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620838.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 450820697 is about 21232.5386376665. The cubic root of 450820697 is about 766.7750071426.

The spelling of 450820697 in words is "four hundred fifty million, eight hundred twenty thousand, six hundred ninety-seven".