870070069 has 4 divisors (see below), whose sum is σ = 949167360. Its totient is φ = 790972780.

The previous prime is 870070067. The next prime is 870070099. The reversal of 870070069 is 960070078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 870070069 - 2¹ = 870070067 is a prime.

It is a super-2 number, since 2×870070069² = 1514043849939329522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870070067) 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, 39548629 + ... + 39548650.

It is an arithmetic number, because the mean of its divisors is an integer number (237291840).

Almost surely, 2^870070069 is an apocalyptic number.

It is an amenable number.

870070069 is a deficient number, since it is larger than the sum of its proper divisors (79097291).

870070069 is a wasteful number, since it uses less digits than its factorization.

870070069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79097290.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 870070069 is about 29496.9501643814. The cubic root of 870070069 is about 954.6658988645.

Subtracting 870070069 from its reverse (960070078), we obtain a palindrome (90000009).

The spelling of 870070069 in words is "eight hundred seventy million, seventy thousand, sixty-nine".