29656945 has 8 divisors (see below), whose sum is σ = 36260136. Its totient is φ = 23277696.

The previous prime is 29656927. The next prime is 29656951. The reversal of 29656945 is 54965692.

It can be written as a sum of positive squares in 4 ways, for example, as 13278736 + 16378209 = 3644^2 + 4047^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29656945 - 2⁹ = 29656433 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29656895 and 29656904.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55692 + ... + 56221.

It is an arithmetic number, because the mean of its divisors is an integer number (4532517).

Almost surely, 2^29656945 is an apocalyptic number.

It is an amenable number.

29656945 is a deficient number, since it is larger than the sum of its proper divisors (6603191).

29656945 is a wasteful number, since it uses less digits than its factorization.

29656945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111971.

The product of its digits is 583200, while the sum is 46.

The square root of 29656945 is about 5445.8190384918. The cubic root of 29656945 is about 309.5343164067.

The spelling of 29656945 in words is "twenty-nine million, six hundred fifty-six thousand, nine hundred forty-five".