9887390 has 32 divisors (see below), whose sum is σ = 18437760. Its totient is φ = 3815424.

The previous prime is 9887363. The next prime is 9887393. The reversal of 9887390 is 937889.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9887393) 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, 51134 + ... + 51326.

It is an arithmetic number, because the mean of its divisors is an integer number (576180).

Almost surely, 2^9887390 is an apocalyptic number.

9887390 is a deficient number, since it is larger than the sum of its proper divisors (8550370).

9887390 is a wasteful number, since it uses less digits than its factorization.

9887390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 9887390 is about 3144.4220454640. The cubic root of 9887390 is about 214.6317112988.

The spelling of 9887390 in words is "nine million, eight hundred eighty-seven thousand, three hundred ninety".