69678081 has 12 divisors (see below), whose sum is σ = 109795920. Its totient is φ = 42229080.

The previous prime is 69678071. The next prime is 69678083. The reversal of 69678081 is 18087696.

It is a happy number.

It is not a de Polignac number, because 69678081 - 2⁷ = 69677953 is a prime.

It is a super-2 number, since 2×69678081² = 9710069943685122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69678083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351811 + ... + 352008.

It is an arithmetic number, because the mean of its divisors is an integer number (9149660).

Almost surely, 2^69678081 is an apocalyptic number.

It is an amenable number.

69678081 is a deficient number, since it is larger than the sum of its proper divisors (40117839).

69678081 is a wasteful number, since it uses less digits than its factorization.

69678081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703836 (or 703833 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 69678081 is about 8347.3397558743. The cubic root of 69678081 is about 411.4957875776.

The spelling of 69678081 in words is "sixty-nine million, six hundred seventy-eight thousand, eighty-one".