248886431 has 4 divisors (see below), whose sum is σ = 250176192. Its totient is φ = 247596672.

The previous prime is 248886413. The next prime is 248886467. The reversal of 248886431 is 134688842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134688842 = 2 ⋅67344421.

It is a cyclic number.

It is not a de Polignac number, because 248886431 - 2¹⁰ = 248885407 is a prime.

It is a super-2 number, since 2×248886431² = 123888911071835522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248886401) 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, 644591 + ... + 644976.

It is an arithmetic number, because the mean of its divisors is an integer number (62544048).

Almost surely, 2^248886431 is an apocalyptic number.

248886431 is a deficient number, since it is larger than the sum of its proper divisors (1289761).

248886431 is a wasteful number, since it uses less digits than its factorization.

248886431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289760.

The product of its digits is 294912, while the sum is 44.

The square root of 248886431 is about 15776.1348561680. The cubic root of 248886431 is about 629.0237933983.

The spelling of 248886431 in words is "two hundred forty-eight million, eight hundred eighty-six thousand, four hundred thirty-one".