87048013 has 12 divisors (see below), whose sum is σ = 96813588. Its totient is φ = 78174720.

The previous prime is 87048011. The next prime is 87048023. The reversal of 87048013 is 31084078.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1170724 + 85877289 = 1082^2 + 9267^2 .

It is not a de Polignac number, because 87048013 - 2¹ = 87048011 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 (87048011) 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, 708 + ... + 13213.

It is an arithmetic number, because the mean of its divisors is an integer number (8067799).

Almost surely, 2^87048013 is an apocalyptic number.

It is an amenable number.

87048013 is a deficient number, since it is larger than the sum of its proper divisors (9765575).

87048013 is a wasteful number, since it uses less digits than its factorization.

87048013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13984 (or 13971 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 87048013 is about 9329.9524650450. The cubic root of 87048013 is about 443.1862597804.

The spelling of 87048013 in words is "eighty-seven million, forty-eight thousand, thirteen".