87070807 has 4 divisors (see below), whose sum is σ = 87435360. Its totient is φ = 86706256.

The previous prime is 87070793. The next prime is 87070811. The reversal of 87070807 is 70807078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70807078 = 2 ⋅35403539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87070807 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 (87070007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181918 + ... + 182395.

It is an arithmetic number, because the mean of its divisors is an integer number (21858840).

Almost surely, 2^87070807 is an apocalyptic number.

87070807 is a deficient number, since it is larger than the sum of its proper divisors (364553).

87070807 is a wasteful number, since it uses less digits than its factorization.

87070807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364552.

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

The square root of 87070807 is about 9331.1739347201. The cubic root of 87070807 is about 443.2249399893.

The spelling of 87070807 in words is "eighty-seven million, seventy thousand, eight hundred seven".