448690387 has 2 divisors, whose sum is σ = 448690388. Its totient is φ = 448690386.

The previous prime is 448690313. The next prime is 448690409. The reversal of 448690387 is 783096844.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 448690387 - 2⁷ = 448690259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 448690387.

It is not a weakly prime, because it can be changed into another prime (448690687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224345193 + 224345194.

It is an arithmetic number, because the mean of its divisors is an integer number (224345194).

Almost surely, 2^448690387 is an apocalyptic number.

448690387 is a deficient number, since it is larger than the sum of its proper divisors (1).

448690387 is an equidigital number, since it uses as much as digits as its factorization.

448690387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 448690387 is about 21182.3130701064. The cubic root of 448690387 is about 765.5653257880.

The spelling of 448690387 in words is "four hundred forty-eight million, six hundred ninety thousand, three hundred eighty-seven".