69745427 has 4 divisors (see below), whose sum is σ = 69983760. Its totient is φ = 69507096.

The previous prime is 69745421. The next prime is 69745433. The reversal of 69745427 is 72454796.

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

It is an interprime number because it is at equal distance from previous prime (69745421) and next prime (69745433).

It is a cyclic number.

It is not a de Polignac number, because 69745427 - 2¹⁸ = 69483283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69745421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118727 + ... + 119312.

It is an arithmetic number, because the mean of its divisors is an integer number (17495940).

Almost surely, 2^69745427 is an apocalyptic number.

69745427 is a deficient number, since it is larger than the sum of its proper divisors (238333).

69745427 is a wasteful number, since it uses less digits than its factorization.

69745427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238332.

The product of its digits is 423360, while the sum is 44.

The square root of 69745427 is about 8351.3727614087. The cubic root of 69745427 is about 411.6283193166.

The spelling of 69745427 in words is "sixty-nine million, seven hundred forty-five thousand, four hundred twenty-seven".