69673681 has 16 divisors (see below), whose sum is σ = 87321600. Its totient is φ = 54006480.

The previous prime is 69673663. The next prime is 69673687. The reversal of 69673681 is 18637696.

It is not a de Polignac number, because 69673681 - 2⁹ = 69673169 is a prime.

It is a super-2 number, since 2×69673681² = 9708843648179522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69673687) 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 15 ways as a sum of consecutive naturals, for example, 13050 + ... + 17596.

It is an arithmetic number, because the mean of its divisors is an integer number (5457600).

Almost surely, 2^69673681 is an apocalyptic number.

It is an amenable number.

69673681 is a deficient number, since it is larger than the sum of its proper divisors (17647919).

69673681 is a wasteful number, since it uses less digits than its factorization.

69673681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4764.

The product of its digits is 326592, while the sum is 46.

The square root of 69673681 is about 8347.0761946924. The cubic root of 69673681 is about 411.4871257452.

It can be divided in two parts, 6967 and 3681, that added together give a cube (10648 = 22³).

The spelling of 69673681 in words is "sixty-nine million, six hundred seventy-three thousand, six hundred eighty-one".