3887390 has 32 divisors (see below), whose sum is σ = 7983360. Its totient is φ = 1350144.

The previous prime is 3887383. The next prime is 3887393. The reversal of 3887390 is 937883.

It is a super-2 number, since 2×3887390² = 30223602024200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887393) 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, 1331 + ... + 3089.

It is an arithmetic number, because the mean of its divisors is an integer number (249480).

Almost surely, 2^3887390 is an apocalyptic number.

3887390 is an abundant number, since it is smaller than the sum of its proper divisors (4095970).

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

3887390 is a wasteful number, since it uses less digits than its factorization.

3887390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 3887390 is about 1971.6465200436. The cubic root of 3887390 is about 157.2362597026.

The spelling of 3887390 in words is "three million, eight hundred eighty-seven thousand, three hundred ninety".