8473491 has 30 divisors (see below), whose sum is σ = 13728660. Its totient is φ = 5206032.

The previous prime is 8473483. The next prime is 8473523. The reversal of 8473491 is 1943748.

It is a happy number.

It is not a de Polignac number, because 8473491 - 2³ = 8473483 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

8473491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8473471) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 13380 + ... + 13998.

It is an arithmetic number, because the mean of its divisors is an integer number (457622).

Almost surely, 2^8473491 is an apocalyptic number.

8473491 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

8473491 is a deficient number, since it is larger than the sum of its proper divisors (5255169).

8473491 is a wasteful number, since it uses less digits than its factorization.

8473491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 635 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 8473491 is about 2910.9261412822. The cubic root of 8473491 is about 203.8703761305.

The spelling of 8473491 in words is "eight million, four hundred seventy-three thousand, four hundred ninety-one".