29812969 has 2 divisors, whose sum is σ = 29812970. Its totient is φ = 29812968.

The previous prime is 29812961. The next prime is 29812997. The reversal of 29812969 is 96921892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29811600 + 1369 = 5460^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 29812969 - 2³ = 29812961 is a prime.

It is a super-2 number, since 2×29812969² = 1777626241189922, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (29812961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14906484 + 14906485.

It is an arithmetic number, because the mean of its divisors is an integer number (14906485).

Almost surely, 2^29812969 is an apocalyptic number.

It is an amenable number.

29812969 is a deficient number, since it is larger than the sum of its proper divisors (1).

29812969 is an equidigital number, since it uses as much as digits as its factorization.

29812969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 46.

The square root of 29812969 is about 5460.1253648611. The cubic root of 29812969 is about 310.0761831493.

The spelling of 29812969 in words is "twenty-nine million, eight hundred twelve thousand, nine hundred sixty-nine".