8672429 has 2 divisors, whose sum is σ = 8672430. Its totient is φ = 8672428.

The previous prime is 8672423. The next prime is 8672441. The reversal of 8672429 is 9242768.

8672429 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5396329 + 3276100 = 2323^2 + 1810^2 .

It is a cyclic number.

It is not a de Polignac number, because 8672429 - 2¹⁶ = 8606893 is a prime.

It is a super-2 number, since 2×8672429² = 150422049520082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8672392 and 8672401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8672423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4336214 + 4336215.

It is an arithmetic number, because the mean of its divisors is an integer number (4336215).

Almost surely, 2^8672429 is an apocalyptic number.

It is an amenable number.

8672429 is a deficient number, since it is larger than the sum of its proper divisors (1).

8672429 is an equidigital number, since it uses as much as digits as its factorization.

8672429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 8672429 is about 2944.8988098065. The cubic root of 8672429 is about 205.4535190467.

The spelling of 8672429 in words is "eight million, six hundred seventy-two thousand, four hundred twenty-nine".