89478629 has 2 divisors, whose sum is σ = 89478630. Its totient is φ = 89478628.

The previous prime is 89478611. The next prime is 89478661. The reversal of 89478629 is 92687498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73994404 + 15484225 = 8602^2 + 3935^2 .

It is a cyclic number.

It is not a de Polignac number, because 89478629 - 2⁸ = 89478373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89478689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44739314 + 44739315.

It is an arithmetic number, because the mean of its divisors is an integer number (44739315).

Almost surely, 2^89478629 is an apocalyptic number.

It is an amenable number.

89478629 is a deficient number, since it is larger than the sum of its proper divisors (1).

89478629 is an equidigital number, since it uses as much as digits as its factorization.

89478629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 53.

The square root of 89478629 is about 9459.3144043318. The cubic root of 89478629 is about 447.2734373255.

It can be divided in two parts, 8947 and 8629, that added together give a cube (17576 = 26³).

The spelling of 89478629 in words is "eighty-nine million, four hundred seventy-eight thousand, six hundred twenty-nine".