248739387 has 16 divisors (see below), whose sum is σ = 357450240. Its totient is φ = 152947872.

The previous prime is 248739373. The next prime is 248739389. The reversal of 248739387 is 783937842.

It is not a de Polignac number, because 248739387 - 2¹¹ = 248737339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (248739389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83518 + ... + 86444.

It is an arithmetic number, because the mean of its divisors is an integer number (22340640).

Almost surely, 2^248739387 is an apocalyptic number.

248739387 is a deficient number, since it is larger than the sum of its proper divisors (108710853).

248739387 is a wasteful number, since it uses less digits than its factorization.

248739387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5122.

The product of its digits is 2032128, while the sum is 51.

The square root of 248739387 is about 15771.4738372798. The cubic root of 248739387 is about 628.8998916443.

The spelling of 248739387 in words is "two hundred forty-eight million, seven hundred thirty-nine thousand, three hundred eighty-seven".