29640497 has 2 divisors, whose sum is σ = 29640498. Its totient is φ = 29640496.

The previous prime is 29640493. The next prime is 29640509. The reversal of 29640497 is 79404692.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19149376 + 10491121 = 4376^2 + 3239^2 .

It is a cyclic number.

It is not a de Polignac number, because 29640497 - 2² = 29640493 is a prime.

It is not a weakly prime, because it can be changed into another prime (29640493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14820248 + 14820249.

It is an arithmetic number, because the mean of its divisors is an integer number (14820249).

Almost surely, 2^29640497 is an apocalyptic number.

It is an amenable number.

29640497 is a deficient number, since it is larger than the sum of its proper divisors (1).

29640497 is an equidigital number, since it uses as much as digits as its factorization.

29640497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 29640497 is about 5444.3086797132. The cubic root of 29640497 is about 309.4770823487.

The spelling of 29640497 in words is "twenty-nine million, six hundred forty thousand, four hundred ninety-seven".