387089085 has 16 divisors (see below), whose sum is σ = 625133376. Its totient is φ = 204517248.

The previous prime is 387089081. The next prime is 387089107. The reversal of 387089085 is 580980783.

It is a happy number.

It is not a de Polignac number, because 387089085 - 2² = 387089081 is a prime.

It is a super-2 number, since 2×387089085² = 299675919452274450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387089081) 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, 118984 + ... + 122193.

It is an arithmetic number, because the mean of its divisors is an integer number (39070836).

Almost surely, 2^387089085 is an apocalyptic number.

It is an amenable number.

387089085 is a deficient number, since it is larger than the sum of its proper divisors (238044291).

387089085 is a wasteful number, since it uses less digits than its factorization.

387089085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241292.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 387089085 is about 19674.5796651415. The cubic root of 387089085 is about 728.7920756706.

The spelling of 387089085 in words is "three hundred eighty-seven million, eighty-nine thousand, eighty-five".