8436491 has 8 divisors (see below), whose sum is σ = 9731040. Its totient is φ = 7164288.

The previous prime is 8436479. The next prime is 8436499. The reversal of 8436491 is 1946348.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8436491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8436499) 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, 4766 + ... + 6291.

It is an arithmetic number, because the mean of its divisors is an integer number (1216380).

Almost surely, 2^8436491 is an apocalyptic number.

8436491 is a deficient number, since it is larger than the sum of its proper divisors (1294549).

8436491 is a wasteful number, since it uses less digits than its factorization.

8436491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11173.

The product of its digits is 20736, while the sum is 35.

The square root of 8436491 is about 2904.5638226763. The cubic root of 8436491 is about 203.5732058178.

The spelling of 8436491 in words is "eight million, four hundred thirty-six thousand, four hundred ninety-one".