249441797 has 8 divisors (see below), whose sum is σ = 277253280. Its totient is φ = 222486160.

The previous prime is 249441781. The next prime is 249441851. The reversal of 249441797 is 797144942.

It is a happy number.

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 249441797 - 2⁴ = 249441781 is a prime.

It is a super-3 number, since 3×249441797³ (a number of 26 digits) contains 333 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 (249443797) 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, 213347 + ... + 214512.

It is an arithmetic number, because the mean of its divisors is an integer number (34656660).

Almost surely, 2^249441797 is an apocalyptic number.

It is an amenable number.

249441797 is a deficient number, since it is larger than the sum of its proper divisors (27811483).

249441797 is a wasteful number, since it uses less digits than its factorization.

249441797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427923.

The product of its digits is 508032, while the sum is 47.

The square root of 249441797 is about 15793.7265076992. The cubic root of 249441797 is about 629.4913144145.

The spelling of 249441797 in words is "two hundred forty-nine million, four hundred forty-one thousand, seven hundred ninety-seven".