870007917 has 16 divisors (see below), whose sum is σ = 1204822080. Its totient is φ = 557760000.

The previous prime is 870007907. The next prime is 870007927. The reversal of 870007917 is 719700078.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (870007907) and next prime (870007927).

It is not a de Polignac number, because 870007917 - 2⁸ = 870007661 is a prime.

870007917 is a modest number, since divided by 7917 gives 870 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870007907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1917 + ... + 41757.

It is an arithmetic number, because the mean of its divisors is an integer number (75301380).

Almost surely, 2^870007917 is an apocalyptic number.

870007917 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

It is an amenable number.

870007917 is a deficient number, since it is larger than the sum of its proper divisors (334814163).

870007917 is a wasteful number, since it uses less digits than its factorization.

870007917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40124.

The product of its (nonzero) digits is 24696, while the sum is 39.

The square root of 870007917 is about 29495.8966129189. The cubic root of 870007917 is about 954.6431666694.

The spelling of 870007917 in words is "eight hundred seventy million, seven thousand, nine hundred seventeen".