8662491 has 8 divisors (see below), whose sum is σ = 12833360. Its totient is φ = 5774976.

The previous prime is 8662487. The next prime is 8662517. The reversal of 8662491 is 1942668.

8662491 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8662491 - 2² = 8662487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8662411) 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, 160390 + ... + 160443.

It is an arithmetic number, because the mean of its divisors is an integer number (1604170).

Almost surely, 2^8662491 is an apocalyptic number.

8662491 is a deficient number, since it is larger than the sum of its proper divisors (4170869).

8662491 is a wasteful number, since it uses less digits than its factorization.

8662491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320842 (or 320836 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 8662491 is about 2943.2110016103. The cubic root of 8662491 is about 205.3750105731.

The spelling of 8662491 in words is "eight million, six hundred sixty-two thousand, four hundred ninety-one".