8722961 has 8 divisors (see below), whose sum is σ = 9483264. Its totient is φ = 7975440.

The previous prime is 8722949. The next prime is 8722969. The reversal of 8722961 is 1692278.

It is a happy number.

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 8722961 - 2¹⁸ = 8460817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8722969) 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, 1745 + ... + 4526.

It is an arithmetic number, because the mean of its divisors is an integer number (1185408).

Almost surely, 2^8722961 is an apocalyptic number.

It is an amenable number.

8722961 is a deficient number, since it is larger than the sum of its proper divisors (760303).

8722961 is a wasteful number, since it uses less digits than its factorization.

8722961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6391.

The product of its digits is 12096, while the sum is 35.

The square root of 8722961 is about 2953.4659300557. The cubic root of 8722961 is about 205.8517880084.

The spelling of 8722961 in words is "eight million, seven hundred twenty-two thousand, nine hundred sixty-one".