8724349 has 8 divisors (see below), whose sum is σ = 9463608. Its totient is φ = 8010240.

The previous prime is 8724347. The next prime is 8724371. The reversal of 8724349 is 9434278.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2196324 + 6528025 = 1482^2 + 2555^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8724349 - 2¹ = 8724347 is a prime.

It is a super-2 number, since 2×8724349² = 152228530947602, which contains 22 as substring.

It is a Duffinian number.

8724349 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8724347) 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, 5562 + ... + 6955.

It is an arithmetic number, because the mean of its divisors is an integer number (1182951).

Almost surely, 2^8724349 is an apocalyptic number.

It is an amenable number.

8724349 is a deficient number, since it is larger than the sum of its proper divisors (739259).

8724349 is a wasteful number, since it uses less digits than its factorization.

8724349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12575.

The product of its digits is 48384, while the sum is 37.

The square root of 8724349 is about 2953.7008988725. The cubic root of 8724349 is about 205.8627058274.

The spelling of 8724349 in words is "eight million, seven hundred twenty-four thousand, three hundred forty-nine".