248378477 has 2 divisors, whose sum is σ = 248378478. Its totient is φ = 248378476.

The previous prime is 248378443. The next prime is 248378497. The reversal of 248378477 is 774873842.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244171876 + 4206601 = 15626^2 + 2051^2 .

It is a cyclic number.

It is not a de Polignac number, because 248378477 - 2¹⁰ = 248377453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248378497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124189238 + 124189239.

It is an arithmetic number, because the mean of its divisors is an integer number (124189239).

Almost surely, 2^248378477 is an apocalyptic number.

It is an amenable number.

248378477 is a deficient number, since it is larger than the sum of its proper divisors (1).

248378477 is an equidigital number, since it uses as much as digits as its factorization.

248378477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2107392, while the sum is 50.

The square root of 248378477 is about 15760.0278235795. The cubic root of 248378477 is about 628.5955756441.

The spelling of 248378477 in words is "two hundred forty-eight million, three hundred seventy-eight thousand, four hundred seventy-seven".