248584891 has 2 divisors, whose sum is σ = 248584892. Its totient is φ = 248584890.

The previous prime is 248584879. The next prime is 248584969. The reversal of 248584891 is 198485842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 248584891 - 2⁹ = 248584379 is a prime.

It is not a weakly prime, because it can be changed into another prime (248584801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124292445 + 124292446.

It is an arithmetic number, because the mean of its divisors is an integer number (124292446).

Almost surely, 2^248584891 is an apocalyptic number.

248584891 is a deficient number, since it is larger than the sum of its proper divisors (1).

248584891 is an equidigital number, since it uses as much as digits as its factorization.

248584891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 737280, while the sum is 49.

The square root of 248584891 is about 15766.5751195369. The cubic root of 248584891 is about 628.7696580932.

The spelling of 248584891 in words is "two hundred forty-eight million, five hundred eighty-four thousand, eight hundred ninety-one".