70999671 has 8 divisors (see below), whose sum is σ = 95347840. Its totient is φ = 46992312.

The previous prime is 70999631. The next prime is 70999681. The reversal of 70999671 is 17699907.

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

It is not a de Polignac number, because 70999671 - 2¹⁴ = 70983287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70999671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70999631) 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 7 ways as a sum of consecutive naturals, for example, 84715 + ... + 85548.

It is an arithmetic number, because the mean of its divisors is an integer number (11918480).

Almost surely, 2^70999671 is an apocalyptic number.

70999671 is a deficient number, since it is larger than the sum of its proper divisors (24348169).

70999671 is a wasteful number, since it uses less digits than its factorization.

70999671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170405.

The product of its (nonzero) digits is 214326, while the sum is 48.

The square root of 70999671 is about 8426.1302505955. The cubic root of 70999671 is about 414.0811353502.

The spelling of 70999671 in words is "seventy million, nine hundred ninety-nine thousand, six hundred seventy-one".