69663427 has 2 divisors, whose sum is σ = 69663428. Its totient is φ = 69663426.

The previous prime is 69663421. The next prime is 69663439. The reversal of 69663427 is 72436696.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69663427 - 2¹⁹ = 69139139 is a prime.

It is a super-2 number, since 2×69663427² = 9705986122768658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (69663421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34831713 + 34831714.

It is an arithmetic number, because the mean of its divisors is an integer number (34831714).

Almost surely, 2^69663427 is an apocalyptic number.

69663427 is a deficient number, since it is larger than the sum of its proper divisors (1).

69663427 is an equidigital number, since it uses as much as digits as its factorization.

69663427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 43.

The square root of 69663427 is about 8346.4619450399. The cubic root of 69663427 is about 411.4669383232.

The spelling of 69663427 in words is "sixty-nine million, six hundred sixty-three thousand, four hundred twenty-seven".