449771477 has 4 divisors (see below), whose sum is σ = 473443680. Its totient is φ = 426099276.

The previous prime is 449771473. The next prime is 449771479. The reversal of 449771477 is 774177944.

It is a happy number.

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 449771477 - 2² = 449771473 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 (449771473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11836073 + ... + 11836110.

It is an arithmetic number, because the mean of its divisors is an integer number (118360920).

Almost surely, 2^449771477 is an apocalyptic number.

It is an amenable number.

449771477 is a deficient number, since it is larger than the sum of its proper divisors (23672203).

449771477 is a wasteful number, since it uses less digits than its factorization.

449771477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23672202.

The product of its digits is 1382976, while the sum is 50.

The square root of 449771477 is about 21207.8164128229. The cubic root of 449771477 is about 766.1796924066.

The spelling of 449771477 in words is "four hundred forty-nine million, seven hundred seventy-one thousand, four hundred seventy-seven".