248476987 has 4 divisors (see below), whose sum is σ = 271065816. Its totient is φ = 225888160.

The previous prime is 248476979. The next prime is 248477011. The reversal of 248476987 is 789674842.

It is a happy number.

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 248476987 - 2³ = 248476979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248476957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11294398 + ... + 11294419.

It is an arithmetic number, because the mean of its divisors is an integer number (67766454).

Almost surely, 2^248476987 is an apocalyptic number.

248476987 is a deficient number, since it is larger than the sum of its proper divisors (22588829).

248476987 is a wasteful number, since it uses less digits than its factorization.

248476987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22588828.

The product of its digits is 5419008, while the sum is 55.

The square root of 248476987 is about 15763.1528254978. The cubic root of 248476987 is about 628.6786676068.

The spelling of 248476987 in words is "two hundred forty-eight million, four hundred seventy-six thousand, nine hundred eighty-seven".