248479493 has 4 divisors (see below), whose sum is σ = 250939788. Its totient is φ = 246019200.

The previous prime is 248479489. The next prime is 248479501. The reversal of 248479493 is 394974842.

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

It can be written as a sum of positive squares in 2 ways, for example, as 112826884 + 135652609 = 10622^2 + 11647^2 .

It is a cyclic number.

It is not a de Polignac number, because 248479493 - 2² = 248479489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248479193) 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, 1229996 + ... + 1230197.

It is an arithmetic number, because the mean of its divisors is an integer number (62734947).

Almost surely, 2^248479493 is an apocalyptic number.

It is an amenable number.

248479493 is a deficient number, since it is larger than the sum of its proper divisors (2460295).

248479493 is a wasteful number, since it uses less digits than its factorization.

248479493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460294.

The product of its digits is 1741824, while the sum is 50.

The square root of 248479493 is about 15763.2323144715. The cubic root of 248479493 is about 628.6807811003.

The spelling of 248479493 in words is "two hundred forty-eight million, four hundred seventy-nine thousand, four hundred ninety-three".