29664649 has 6 divisors (see below), whose sum is σ = 34507914. Its totient is φ = 25426800.

The previous prime is 29664629. The next prime is 29664703. The reversal of 29664649 is 94646692.

It can be written as a sum of positive squares in only one way, i.e., 25684624 + 3980025 = 5068^2 + 1995^2 .

It is not a de Polignac number, because 29664649 - 2⁵ = 29664617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29664599 and 29664608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29664619) 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 in 5 ways as a sum of consecutive naturals, for example, 302652 + ... + 302749.

It is an arithmetic number, because the mean of its divisors is an integer number (5751319).

Almost surely, 2^29664649 is an apocalyptic number.

It is an amenable number.

29664649 is a deficient number, since it is larger than the sum of its proper divisors (4843265).

29664649 is an equidigital number, since it uses as much as digits as its factorization.

29664649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605415 (or 605408 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The square root of 29664649 is about 5446.5263241813. The cubic root of 29664649 is about 309.5611167163.

The spelling of 29664649 in words is "twenty-nine million, six hundred sixty-four thousand, six hundred forty-nine".