387090 has 96 divisors (see below), whose sum is σ = 1213056. Its totient is φ = 84480.

The previous prime is 387089. The next prime is 387109. The reversal of 387090 is 90783.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 387090.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16819 + ... + 16841.

It is an arithmetic number, because the mean of its divisors is an integer number (12636).

2³⁸⁷⁰⁹⁰ is an apocalyptic number.

387090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 387090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606528).

387090 is an abundant number, since it is smaller than the sum of its proper divisors (825966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387090 is a wasteful number, since it uses less digits than its factorization.

387090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 387090 is about 622.1655728180. The cubic root of 387090 is about 72.8792649909.

The spelling of 387090 in words is "three hundred eighty-seven thousand, ninety".