29089661 has 2 divisors, whose sum is σ = 29089662. Its totient is φ = 29089660.

The previous prime is 29089657. The next prime is 29089667. The reversal of 29089661 is 16698092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22146436 + 6943225 = 4706^2 + 2635^2 .

It is a cyclic number.

It is not a de Polignac number, because 29089661 - 2² = 29089657 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29089667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14544830 + 14544831.

It is an arithmetic number, because the mean of its divisors is an integer number (14544831).

Almost surely, 2^29089661 is an apocalyptic number.

It is an amenable number.

29089661 is a deficient number, since it is larger than the sum of its proper divisors (1).

29089661 is an equidigital number, since it uses as much as digits as its factorization.

29089661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 29089661 is about 5393.4831973410. The cubic root of 29089661 is about 307.5479855491.

The spelling of 29089661 in words is "twenty-nine million, eighty-nine thousand, six hundred sixty-one".