70971955 has 8 divisors (see below), whose sum is σ = 86366304. Its totient is φ = 55977600.

The previous prime is 70971949. The next prime is 70971959. The reversal of 70971955 is 55917907.

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

It is not a de Polignac number, because 70971955 - 2³ = 70971947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70971959) 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, 99606 + ... + 100315.

It is an arithmetic number, because the mean of its divisors is an integer number (10795788).

Almost surely, 2^70971955 is an apocalyptic number.

70971955 is a deficient number, since it is larger than the sum of its proper divisors (15394349).

70971955 is a wasteful number, since it uses less digits than its factorization.

70971955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199997.

The product of its (nonzero) digits is 99225, while the sum is 43.

The square root of 70971955 is about 8424.4854442274. The cubic root of 70971955 is about 414.0272469951.

The spelling of 70971955 in words is "seventy million, nine hundred seventy-one thousand, nine hundred fifty-five".