70995999 has 4 divisors (see below), whose sum is σ = 94661336. Its totient is φ = 47330664.

The previous prime is 70995937. The next prime is 70996019. The reversal of 70995999 is 99959907.

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

It is not a de Polignac number, because 70995999 - 2¹⁵ = 70963231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70995919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11832664 + ... + 11832669.

It is an arithmetic number, because the mean of its divisors is an integer number (23665334).

Almost surely, 2^70995999 is an apocalyptic number.

70995999 is a deficient number, since it is larger than the sum of its proper divisors (23665337).

70995999 is a wasteful number, since it uses less digits than its factorization.

70995999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23665336.

The product of its (nonzero) digits is 2066715, while the sum is 57.

The square root of 70995999 is about 8425.9123541608. The cubic root of 70995999 is about 414.0739966686.

The spelling of 70995999 in words is "seventy million, nine hundred ninety-five thousand, nine hundred ninety-nine".