8249663 has 4 divisors (see below), whose sum is σ = 8608368. Its totient is φ = 7890960.

The previous prime is 8249623. The next prime is 8249687. The reversal of 8249663 is 3669428.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8249663 - 2⁶ = 8249599 is a prime.

It is a super-2 number, since 2×8249663² = 136113879227138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8249623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179318 + ... + 179363.

It is an arithmetic number, because the mean of its divisors is an integer number (2152092).

Almost surely, 2^8249663 is an apocalyptic number.

8249663 is a deficient number, since it is larger than the sum of its proper divisors (358705).

8249663 is a wasteful number, since it uses less digits than its factorization.

8249663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358704.

The product of its digits is 62208, while the sum is 38.

The square root of 8249663 is about 2872.2226584999. Note that the first 3 decimals coincide. The cubic root of 8249663 is about 202.0592496848.

The spelling of 8249663 in words is "eight million, two hundred forty-nine thousand, six hundred sixty-three".