29623189 has 2 divisors, whose sum is σ = 29623190. Its totient is φ = 29623188.

The previous prime is 29623171. The next prime is 29623193. The reversal of 29623189 is 98132692.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20520900 + 9102289 = 4530^2 + 3017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29623189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29623169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14811594 + 14811595.

It is an arithmetic number, because the mean of its divisors is an integer number (14811595).

Almost surely, 2^29623189 is an apocalyptic number.

It is an amenable number.

29623189 is a deficient number, since it is larger than the sum of its proper divisors (1).

29623189 is an equidigital number, since it uses as much as digits as its factorization.

29623189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 29623189 is about 5442.7188977569. The cubic root of 29623189 is about 309.4168328835.

The spelling of 29623189 in words is "twenty-nine million, six hundred twenty-three thousand, one hundred eighty-nine".