29528981 has 2 divisors, whose sum is σ = 29528982. Its totient is φ = 29528980.

The previous prime is 29528959. The next prime is 29529029. The reversal of 29528981 is 18982592.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29528356 + 625 = 5434^2 + 25^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29528981 is a prime.

It is a super-2 number, since 2×29528981² = 1743921437796722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29521981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14764490 + 14764491.

It is an arithmetic number, because the mean of its divisors is an integer number (14764491).

Almost surely, 2^29528981 is an apocalyptic number.

It is an amenable number.

29528981 is a deficient number, since it is larger than the sum of its proper divisors (1).

29528981 is an equidigital number, since it uses as much as digits as its factorization.

29528981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 44.

The square root of 29528981 is about 5434.0575079769. The cubic root of 29528981 is about 309.0884809262.

The spelling of 29528981 in words is "twenty-nine million, five hundred twenty-eight thousand, nine hundred eighty-one".