69306681 has 4 divisors (see below), whose sum is σ = 92408912. Its totient is φ = 46204452.

The previous prime is 69306673. The next prime is 69306689. The reversal of 69306681 is 18660396.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (69306673) and next prime (69306689).

It is not a de Polignac number, because 69306681 - 2³ = 69306673 is a prime.

It is a super-2 number, since 2×69306681² = 9606832062471522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69306689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11551111 + ... + 11551116.

It is an arithmetic number, because the mean of its divisors is an integer number (23102228).

Almost surely, 2^69306681 is an apocalyptic number.

It is an amenable number.

69306681 is a deficient number, since it is larger than the sum of its proper divisors (23102231).

69306681 is a wasteful number, since it uses less digits than its factorization.

69306681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23102230.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 69306681 is about 8325.0634231818. The cubic root of 69306681 is about 410.7633626936.

The spelling of 69306681 in words is "sixty-nine million, three hundred six thousand, six hundred eighty-one".