387901089 has 16 divisors (see below), whose sum is σ = 579758400. Its totient is φ = 256310208.

The previous prime is 387901079. The next prime is 387901091. The reversal of 387901089 is 980109783.

It is not a de Polignac number, because 387901089 - 2⁸ = 387900833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (387901009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60519 + ... + 66620.

It is an arithmetic number, because the mean of its divisors is an integer number (36234900).

Almost surely, 2^387901089 is an apocalyptic number.

It is an amenable number.

387901089 is a deficient number, since it is larger than the sum of its proper divisors (191857311).

387901089 is a wasteful number, since it uses less digits than its factorization.

387901089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127261 (or 127255 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 387901089 is about 19695.2047209467. The cubic root of 387901089 is about 729.3013200002.

The spelling of 387901089 in words is "three hundred eighty-seven million, nine hundred one thousand, eighty-nine".