70981167 has 4 divisors (see below), whose sum is σ = 94641560. Its totient is φ = 47320776.

The previous prime is 70981159. The next prime is 70981187. The reversal of 70981167 is 76118907.

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

It is not a de Polignac number, because 70981167 - 2³ = 70981159 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 (70981117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11830192 + ... + 11830197.

It is an arithmetic number, because the mean of its divisors is an integer number (23660390).

Almost surely, 2^70981167 is an apocalyptic number.

70981167 is a deficient number, since it is larger than the sum of its proper divisors (23660393).

70981167 is a wasteful number, since it uses less digits than its factorization.

70981167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23660392.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 70981167 is about 8425.0321661107. The cubic root of 70981167 is about 414.0451594884.

The spelling of 70981167 in words is "seventy million, nine hundred eighty-one thousand, one hundred sixty-seven".