69967427 has 16 divisors (see below), whose sum is σ = 76111200. Its totient is φ = 64074240.

The previous prime is 69967421. The next prime is 69967433. The reversal of 69967427 is 72476996.

It is an interprime number because it is at equal distance from previous prime (69967421) and next prime (69967433).

It is a cyclic number.

It is not a de Polignac number, because 69967427 - 2⁴ = 69967411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69967421) 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 15 ways as a sum of consecutive naturals, for example, 112724 + ... + 113342.

It is an arithmetic number, because the mean of its divisors is an integer number (4756950).

Almost surely, 2^69967427 is an apocalyptic number.

69967427 is a deficient number, since it is larger than the sum of its proper divisors (6143773).

69967427 is a wasteful number, since it uses less digits than its factorization.

69967427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

The product of its digits is 1143072, while the sum is 50.

The square root of 69967427 is about 8364.6534297603. The cubic root of 69967427 is about 412.0645950029.

The spelling of 69967427 in words is "sixty-nine million, nine hundred sixty-seven thousand, four hundred twenty-seven".