9379987 has 4 divisors (see below), whose sum is σ = 9393136. Its totient is φ = 9366840.

The previous prime is 9379973. The next prime is 9379991. The reversal of 9379987 is 7899739.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7899739 = 241 ⋅32779.

It is a cyclic number.

It is not a de Polignac number, because 9379987 - 2¹¹ = 9377939 is a prime.

It is a super-2 number, since 2×9379987² = 175968312240338, which contains 22 as substring.

It is a Duffinian number.

9379987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9379387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5439 + ... + 6952.

It is an arithmetic number, because the mean of its divisors is an integer number (2348284).

Almost surely, 2^9379987 is an apocalyptic number.

9379987 is a deficient number, since it is larger than the sum of its proper divisors (13149).

9379987 is a wasteful number, since it uses less digits than its factorization.

9379987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13148.

The product of its digits is 857304, while the sum is 52.

The square root of 9379987 is about 3062.6764438967. The cubic root of 9379987 is about 210.8955481308.

The spelling of 9379987 in words is "nine million, three hundred seventy-nine thousand, nine hundred eighty-seven".