70870113 has 16 divisors (see below), whose sum is σ = 108614400. Its totient is φ = 45617040.

The previous prime is 70870109. The next prime is 70870117. The reversal of 70870113 is 31107807.

It is an interprime number because it is at equal distance from previous prime (70870109) and next prime (70870117).

It is not a de Polignac number, because 70870113 - 2² = 70870109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (70870117) 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 15 ways as a sum of consecutive naturals, for example, 44473 + ... + 46038.

It is an arithmetic number, because the mean of its divisors is an integer number (6788400).

Almost surely, 2^70870113 is an apocalyptic number.

It is an amenable number.

70870113 is a deficient number, since it is larger than the sum of its proper divisors (37744287).

70870113 is a wasteful number, since it uses less digits than its factorization.

70870113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90549 (or 90543 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 70870113 is about 8418.4388695292. The cubic root of 70870113 is about 413.8291145190.

The spelling of 70870113 in words is "seventy million, eight hundred seventy thousand, one hundred thirteen".