70109999 has 8 divisors (see below), whose sum is σ = 70950000. Its totient is φ = 69273792.

The previous prime is 70109993. The next prime is 70110031. The reversal of 70109999 is 99990107.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70109999 is a prime.

It is a Duffinian number.

70109999 is a modest number, since divided by 9999 gives 7010 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70109993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53747 + ... + 55035.

It is an arithmetic number, because the mean of its divisors is an integer number (8868750).

Almost surely, 2^70109999 is an apocalyptic number.

70109999 is a deficient number, since it is larger than the sum of its proper divisors (840001).

70109999 is a wasteful number, since it uses less digits than its factorization.

70109999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897.

The product of its (nonzero) digits is 45927, while the sum is 44.

The square root of 70109999 is about 8373.1713824572. The cubic root of 70109999 is about 412.3442918897.

The spelling of 70109999 in words is "seventy million, one hundred nine thousand, nine hundred ninety-nine".