87070870 has 16 divisors (see below), whose sum is σ = 163542240. Its totient is φ = 33313984.

The previous prime is 87070861. The next prime is 87070873. The reversal of 87070870 is 7807078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87070873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189055 + ... + 189514.

It is an arithmetic number, because the mean of its divisors is an integer number (10221390).

Almost surely, 2^87070870 is an apocalyptic number.

87070870 is a deficient number, since it is larger than the sum of its proper divisors (76471370).

87070870 is a wasteful number, since it uses less digits than its factorization.

87070870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378599.

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 87070870 is about 9331.1773105005. The cubic root of 87070870 is about 443.2250468876.

The spelling of 87070870 in words is "eighty-seven million, seventy thousand, eight hundred seventy".