70099885 has 4 divisors (see below), whose sum is σ = 84119868. Its totient is φ = 56079904.

The previous prime is 70099879. The next prime is 70099901. The reversal of 70099885 is 58899007.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23941449 + 46158436 = 4893^2 + 6794^2 .

It is a cyclic number.

It is not a de Polignac number, because 70099885 - 2²¹ = 68002733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7009984 + ... + 7009993.

It is an arithmetic number, because the mean of its divisors is an integer number (21029967).

Almost surely, 2^70099885 is an apocalyptic number.

It is an amenable number.

70099885 is a deficient number, since it is larger than the sum of its proper divisors (14019983).

70099885 is a wasteful number, since it uses less digits than its factorization.

70099885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14019982.

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 70099885 is about 8372.5674079102. The cubic root of 70099885 is about 412.3244628078.

The spelling of 70099885 in words is "seventy million, ninety-nine thousand, eight hundred eighty-five".