249487077 has 12 divisors (see below), whose sum is σ = 386959776. Its totient is φ = 142563960.

The previous prime is 249487067. The next prime is 249487079. The reversal of 249487077 is 770784942.

It is not a de Polignac number, because 249487077 - 2⁶ = 249487013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249487079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 848449 + ... + 848742.

It is an arithmetic number, because the mean of its divisors is an integer number (32246648).

Almost surely, 2^249487077 is an apocalyptic number.

It is an amenable number.

249487077 is a deficient number, since it is larger than the sum of its proper divisors (137472699).

249487077 is a wasteful number, since it uses less digits than its factorization.

249487077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697208 (or 1697201 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 48.

The square root of 249487077 is about 15795.1599232170. The cubic root of 249487077 is about 629.5294016457.

The spelling of 249487077 in words is "two hundred forty-nine million, four hundred eighty-seven thousand, seventy-seven".