9077981 has 8 divisors (see below), whose sum is σ = 10002528. Its totient is φ = 8170000.

The previous prime is 9077977. The next prime is 9077993. The reversal of 9077981 is 1897709.

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 9077981 - 2² = 9077977 is a prime.

It is a super-2 number, since 2×9077981² = 164819478072722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9077281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2975 + ... + 5196.

It is an arithmetic number, because the mean of its divisors is an integer number (1250316).

Almost surely, 2^9077981 is an apocalyptic number.

It is an amenable number.

9077981 is a deficient number, since it is larger than the sum of its proper divisors (924547).

9077981 is a wasteful number, since it uses less digits than its factorization.

9077981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8283.

The product of its (nonzero) digits is 31752, while the sum is 41.

The square root of 9077981 is about 3012.9688016971. The cubic root of 9077981 is about 208.6074222121.

It can be divided in two parts, 907 and 7981, that added together give a palindrome (8888).

The spelling of 9077981 in words is "nine million, seventy-seven thousand, nine hundred eighty-one".