248890691 has 4 divisors (see below), whose sum is σ = 284446512. Its totient is φ = 213334872.

The previous prime is 248890679. The next prime is 248890717. The reversal of 248890691 is 196098842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 248890691 - 2⁶ = 248890627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (248890891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17777900 + ... + 17777913.

It is an arithmetic number, because the mean of its divisors is an integer number (71111628).

Almost surely, 2^248890691 is an apocalyptic number.

248890691 is a deficient number, since it is larger than the sum of its proper divisors (35555821).

248890691 is an equidigital number, since it uses as much as digits as its factorization.

248890691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35555820.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 248890691 is about 15776.2698696492. The cubic root of 248890691 is about 629.0273822187.

The spelling of 248890691 in words is "two hundred forty-eight million, eight hundred ninety thousand, six hundred ninety-one".