87070673 has 12 divisors (see below), whose sum is σ = 95074740. Its totient is φ = 79634016.

The previous prime is 87070667. The next prime is 87070691. The reversal of 87070673 is 37607078.

It can be written as a sum of positive squares in 2 ways, for example, as 70845889 + 16224784 = 8417^2 + 4028^2 .

It is a de Polignac number, because none of the positive numbers 2^k-87070673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87070693) 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 11 ways as a sum of consecutive naturals, for example, 6311 + ... + 14627.

It is an arithmetic number, because the mean of its divisors is an integer number (7922895).

Almost surely, 2^87070673 is an apocalyptic number.

It is an amenable number.

87070673 is a deficient number, since it is larger than the sum of its proper divisors (8004067).

87070673 is a wasteful number, since it uses less digits than its factorization.

87070673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8384 (or 8365 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 87070673 is about 9331.1667544847. The cubic root of 87070673 is about 443.2247126181.

The spelling of 87070673 in words is "eighty-seven million, seventy thousand, six hundred seventy-three".