29725429 has 2 divisors, whose sum is σ = 29725430. Its totient is φ = 29725428.

The previous prime is 29725417. The next prime is 29725457. The reversal of 29725429 is 92452792.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26801329 + 2924100 = 5177^2 + 1710^2 .

It is a cyclic number.

It is not a de Polignac number, because 29725429 - 2⁹ = 29724917 is a prime.

It is a super-2 number, since 2×29725429² = 1767202258468082, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 29725391 and 29725400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29725459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14862714 + 14862715.

It is an arithmetic number, because the mean of its divisors is an integer number (14862715).

Almost surely, 2^29725429 is an apocalyptic number.

It is an amenable number.

29725429 is a deficient number, since it is larger than the sum of its proper divisors (1).

29725429 is an equidigital number, since it uses as much as digits as its factorization.

29725429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 29725429 is about 5452.1031721713. The cubic root of 29725429 is about 309.7723927613.

The spelling of 29725429 in words is "twenty-nine million, seven hundred twenty-five thousand, four hundred twenty-nine".