69675381 has 6 divisors (see below), whose sum is σ = 100642230. Its totient is φ = 46450248.

The previous prime is 69675379. The next prime is 69675409. The reversal of 69675381 is 18357696.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64545156 + 5130225 = 8034^2 + 2265^2 .

It is not a de Polignac number, because 69675381 - 2¹ = 69675379 is a prime.

It is a super-2 number, since 2×69675381² = 9709317434990322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69675301) 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 5 ways as a sum of consecutive naturals, for example, 3870846 + ... + 3870863.

It is an arithmetic number, because the mean of its divisors is an integer number (16773705).

Almost surely, 2^69675381 is an apocalyptic number.

It is an amenable number.

69675381 is a deficient number, since it is larger than the sum of its proper divisors (30966849).

69675381 is a wasteful number, since it uses less digits than its factorization.

69675381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7741715 (or 7741712 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 69675381 is about 8347.1780261355. The cubic root of 69675381 is about 411.4904724055.

The spelling of 69675381 in words is "sixty-nine million, six hundred seventy-five thousand, three hundred eighty-one".