8240249 has 2 divisors, whose sum is σ = 8240250. Its totient is φ = 8240248.

The previous prime is 8240231. The next prime is 8240269. The reversal of 8240249 is 9420428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5914624 + 2325625 = 2432^2 + 1525^2 .

It is a cyclic number.

It is not a de Polignac number, because 8240249 - 2¹⁶ = 8174713 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8240269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4120124 + 4120125.

It is an arithmetic number, because the mean of its divisors is an integer number (4120125).

Almost surely, 2^8240249 is an apocalyptic number.

It is an amenable number.

8240249 is a deficient number, since it is larger than the sum of its proper divisors (1).

8240249 is an equidigital number, since it uses as much as digits as its factorization.

8240249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 8240249 is about 2870.5833901840. The cubic root of 8240249 is about 201.9823613001.

The spelling of 8240249 in words is "eight million, two hundred forty thousand, two hundred forty-nine".