448947957 has 4 divisors (see below), whose sum is σ = 598597280. Its totient is φ = 299298636.

The previous prime is 448947923. The next prime is 448947977. The reversal of 448947957 is 759749844.

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 not a de Polignac number, because 448947957 - 2¹⁰ = 448946933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 448947897 and 448947906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448947977) 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, 74824657 + ... + 74824662.

It is an arithmetic number, because the mean of its divisors is an integer number (149649320).

Almost surely, 2^448947957 is an apocalyptic number.

It is an amenable number.

448947957 is a deficient number, since it is larger than the sum of its proper divisors (149649323).

448947957 is a wasteful number, since it uses less digits than its factorization.

448947957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149649322.

The product of its digits is 10160640, while the sum is 57.

The square root of 448947957 is about 21188.3920343192. The cubic root of 448947957 is about 765.7117882835.

The spelling of 448947957 in words is "four hundred forty-eight million, nine hundred forty-seven thousand, nine hundred fifty-seven".