69961271 has 4 divisors (see below), whose sum is σ = 70001472. Its totient is φ = 69921072.

The previous prime is 69961247. The next prime is 69961291. The reversal of 69961271 is 17216996.

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

It is a cyclic number.

It is not a de Polignac number, because 69961271 - 2⁶ = 69961207 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 (69961291) 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, 17366 + ... + 21011.

It is an arithmetic number, because the mean of its divisors is an integer number (17500368).

Almost surely, 2^69961271 is an apocalyptic number.

69961271 is a deficient number, since it is larger than the sum of its proper divisors (40201).

69961271 is a wasteful number, since it uses less digits than its factorization.

69961271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40200.

The product of its digits is 40824, while the sum is 41.

The square root of 69961271 is about 8364.2854446749. The cubic root of 69961271 is about 412.0525096457.

The spelling of 69961271 in words is "sixty-nine million, nine hundred sixty-one thousand, two hundred seventy-one".