70961871 has 8 divisors (see below), whose sum is σ = 94976640. Its totient is φ = 47127512.

The previous prime is 70961867. The next prime is 70961897. The reversal of 70961871 is 17816907.

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

It is a cyclic number.

It is not a de Polignac number, because 70961871 - 2² = 70961867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70961801) 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, 44181 + ... + 45758.

It is an arithmetic number, because the mean of its divisors is an integer number (11872080).

Almost surely, 2^70961871 is an apocalyptic number.

70961871 is a deficient number, since it is larger than the sum of its proper divisors (24014769).

70961871 is a wasteful number, since it uses less digits than its factorization.

70961871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90205.

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

The square root of 70961871 is about 8423.8869294406. The cubic root of 70961871 is about 414.0076371435.

The spelling of 70961871 in words is "seventy million, nine hundred sixty-one thousand, eight hundred seventy-one".