248739239 has 12 divisors (see below), whose sum is σ = 289606968. Its totient is φ = 213015600.

The previous prime is 248739209. The next prime is 248739269. The reversal of 248739239 is 932937842.

It is an interprime number because it is at equal distance from previous prime (248739209) and next prime (248739269).

It is not a de Polignac number, because 248739239 - 2⁸ = 248738983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 248739193 and 248739202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248739209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103724 + ... + 106094.

It is an arithmetic number, because the mean of its divisors is an integer number (24133914).

Almost surely, 2^248739239 is an apocalyptic number.

248739239 is a deficient number, since it is larger than the sum of its proper divisors (40867729).

248739239 is a wasteful number, since it uses less digits than its factorization.

248739239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4526 (or 4519 counting only the distinct ones).

The product of its digits is 653184, while the sum is 47.

The square root of 248739239 is about 15771.4691452635. The cubic root of 248739239 is about 628.8997669124.

The spelling of 248739239 in words is "two hundred forty-eight million, seven hundred thirty-nine thousand, two hundred thirty-nine".