387448811 has 8 divisors (see below), whose sum is σ = 403628400. Its totient is φ = 371589760.

The previous prime is 387448771. The next prime is 387448829. The reversal of 387448811 is 118844783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 387448811 - 2¹⁴ = 387432427 is a prime.

It is a super-2 number, since 2×387448811² = 300233162290627442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (387448891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77666 + ... + 82503.

It is an arithmetic number, because the mean of its divisors is an integer number (50453550).

Almost surely, 2^387448811 is an apocalyptic number.

387448811 is a deficient number, since it is larger than the sum of its proper divisors (16179589).

387448811 is a wasteful number, since it uses less digits than its factorization.

387448811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160269.

The product of its digits is 172032, while the sum is 44.

The square root of 387448811 is about 19683.7194401871. The cubic root of 387448811 is about 729.0177638470.

The spelling of 387448811 in words is "three hundred eighty-seven million, four hundred forty-eight thousand, eight hundred eleven".