249791027 has 6 divisors (see below), whose sum is σ = 251130828. Its totient is φ = 248453552.

The previous prime is 249791021. The next prime is 249791029. The reversal of 249791027 is 720197942.

249791027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 249791027 - 2⁴ = 249791011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249791021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237599 + ... + 238647.

It is an arithmetic number, because the mean of its divisors is an integer number (41855138).

Almost surely, 2^249791027 is an apocalyptic number.

249791027 is a deficient number, since it is larger than the sum of its proper divisors (1339801).

249791027 is an frugal number, since it uses more digits than its factorization.

249791027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325 (or 1276 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 249791027 is about 15804.7786128120. The cubic root of 249791027 is about 629.7849496967.

The spelling of 249791027 in words is "two hundred forty-nine million, seven hundred ninety-one thousand, twenty-seven".