249341977 has 2 divisors, whose sum is σ = 249341978. Its totient is φ = 249341976.

The previous prime is 249341899. The next prime is 249341987. The reversal of 249341977 is 779143942.

249341977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201952521 + 47389456 = 14211^2 + 6884^2 .

It is a cyclic number.

It is not a de Polignac number, because 249341977 - 2⁷ = 249341849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (249341987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124670988 + 124670989.

It is an arithmetic number, because the mean of its divisors is an integer number (124670989).

Almost surely, 2^249341977 is an apocalyptic number.

It is an amenable number.

249341977 is a deficient number, since it is larger than the sum of its proper divisors (1).

249341977 is an equidigital number, since it uses as much as digits as its factorization.

249341977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 46.

The square root of 249341977 is about 15790.5660759835. The cubic root of 249341977 is about 629.4073346279.

The spelling of 249341977 in words is "two hundred forty-nine million, three hundred forty-one thousand, nine hundred seventy-seven".