249613684 has 6 divisors (see below), whose sum is σ = 436823954. Its totient is φ = 124806840.

The previous prime is 249613657. The next prime is 249613691. The reversal of 249613684 is 486316942.

It is a happy number.

249613684 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 249008400 + 605284 = 15780^2 + 778^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 249613684.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31201707 + ... + 31201714.

Almost surely, 2^249613684 is an apocalyptic number.

It is an amenable number.

249613684 is a deficient number, since it is larger than the sum of its proper divisors (187210270).

249613684 is a wasteful number, since it uses less digits than its factorization.

249613684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62403425 (or 62403423 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 249613684 is about 15799.1671932415. The cubic root of 249613684 is about 629.6358725585.

The spelling of 249613684 in words is "two hundred forty-nine million, six hundred thirteen thousand, six hundred eighty-four".