29102389 has 2 divisors, whose sum is σ = 29102390. Its totient is φ = 29102388.

The previous prime is 29102371. The next prime is 29102401. The reversal of 29102389 is 98320192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16443025 + 12659364 = 4055^2 + 3558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29102389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29102329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14551194 + 14551195.

It is an arithmetic number, because the mean of its divisors is an integer number (14551195).

Almost surely, 2^29102389 is an apocalyptic number.

It is an amenable number.

29102389 is a deficient number, since it is larger than the sum of its proper divisors (1).

29102389 is an equidigital number, since it uses as much as digits as its factorization.

29102389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 29102389 is about 5394.6630107913. The cubic root of 29102389 is about 307.5928342439.

The spelling of 29102389 in words is "twenty-nine million, one hundred two thousand, three hundred eighty-nine".