9406981 has 8 divisors (see below), whose sum is σ = 9937664. Its totient is φ = 8890560.

The previous prime is 9406973. The next prime is 9406997. The reversal of 9406981 is 1896049.

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

It is a cyclic number.

It is not a de Polignac number, because 9406981 - 2³ = 9406973 is a prime.

It is a super-2 number, since 2×9406981² = 176982583068722, 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 9406981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9406921) 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, 2196 + ... + 4861.

It is an arithmetic number, because the mean of its divisors is an integer number (1242208).

Almost surely, 2^9406981 is an apocalyptic number.

It is an amenable number.

9406981 is a deficient number, since it is larger than the sum of its proper divisors (530683).

9406981 is a wasteful number, since it uses less digits than its factorization.

9406981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7131.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 9406981 is about 3067.0802076242. The cubic root of 9406981 is about 211.0976614905.

It can be divided in two parts, 940 and 6981, that added together give a square (7921 = 89²).

The spelling of 9406981 in words is "nine million, four hundred six thousand, nine hundred eighty-one".