249477 has 8 divisors (see below), whose sum is σ = 335616. Its totient is φ = 164832.

The previous prime is 249463. The next prime is 249497. The reversal of 249477 is 774942.

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

It is a de Polignac number, because none of the positive numbers 2^k-249477 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 4 + 4² + 9³ + 7 + 7⁶ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249427) 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, 108 + ... + 714.

It is an arithmetic number, because the mean of its divisors is an integer number (41952).

2²⁴⁹⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

249477 is a deficient number, since it is larger than the sum of its proper divisors (86139).

249477 is a wasteful number, since it uses less digits than its factorization.

249477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747.

The product of its digits is 14112, while the sum is 33.

The square root of 249477 is about 499.4767261845. The cubic root of 249477 is about 62.9520925785.

The spelling of 249477 in words is "two hundred forty-nine thousand, four hundred seventy-seven".