9371881 has 8 divisors (see below), whose sum is σ = 9525384. Its totient is φ = 9219840.

The previous prime is 9371863. The next prime is 9371897. The reversal of 9371881 is 1881739.

It can be written as a sum of positive squares in 4 ways, for example, as 8281 + 9363600 = 91^2 + 3060^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 4-Lehmer number, since φ(9371881) divides (9371881-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 9371881 - 2¹³ = 9363689 is a prime.

It is a super-2 number, since 2×9371881² = 175664306956322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9371881.

It is not an unprimeable number, because it can be changed into a prime (9371851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22051 + ... + 22471.

It is an arithmetic number, because the mean of its divisors is an integer number (1190673).

Almost surely, 2^9371881 is an apocalyptic number.

It is an amenable number.

9371881 is a deficient number, since it is larger than the sum of its proper divisors (153503).

9371881 is a wasteful number, since it uses less digits than its factorization.

9371881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731.

The product of its digits is 12096, while the sum is 37.

The square root of 9371881 is about 3061.3528055420. The cubic root of 9371881 is about 210.8347800297.

The spelling of 9371881 in words is "nine million, three hundred seventy-one thousand, eight hundred eighty-one".