87478948 has 12 divisors (see below), whose sum is σ = 153170892. Its totient is φ = 43715840.

The previous prime is 87478939. The next prime is 87478949. The reversal of 87478948 is 84987478.

It can be written as a sum of positive squares in 2 ways, for example, as 39841344 + 47637604 = 6312^2 + 6902^2 .

It is not an unprimeable number, because it can be changed into a prime (87478949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4428 + ... + 13948.

It is an arithmetic number, because the mean of its divisors is an integer number (12764241).

Almost surely, 2^87478948 is an apocalyptic number.

It is an amenable number.

87478948 is a deficient number, since it is larger than the sum of its proper divisors (65691944).

87478948 is a wasteful number, since it uses less digits than its factorization.

87478948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11822 (or 11820 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 55.

The square root of 87478948 is about 9353.0181225100. The cubic root of 87478948 is about 443.9163939107.

The spelling of 87478948 in words is "eighty-seven million, four hundred seventy-eight thousand, nine hundred forty-eight".