1448685687 has 4 divisors (see below), whose sum is σ = 1931580920. Its totient is φ = 965790456.

The previous prime is 1448685673. The next prime is 1448685703. The reversal of 1448685687 is 7865868441.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1448685687 - 2⁴ = 1448685671 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 (1448681687) 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, 241447612 + ... + 241447617.

It is an arithmetic number, because the mean of its divisors is an integer number (482895230).

Almost surely, 2^1448685687 is an apocalyptic number.

1448685687 is a deficient number, since it is larger than the sum of its proper divisors (482895233).

1448685687 is an equidigital number, since it uses as much as digits as its factorization.

1448685687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482895232.

The product of its digits is 10321920, while the sum is 57.

The square root of 1448685687 is about 38061.6038416670. The cubic root of 1448685687 is about 1131.5091140240.

The spelling of 1448685687 in words is "one billion, four hundred forty-eight million, six hundred eighty-five thousand, six hundred eighty-seven".