29797997 has 4 divisors (see below), whose sum is σ = 29812860. Its totient is φ = 29783136.

The previous prime is 29797973. The next prime is 29798017. The reversal of 29797997 is 79979792.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13645636 + 16152361 = 3694^2 + 4019^2 .

It is a cyclic number.

It is not a de Polignac number, because 29797997 - 2⁸ = 29797741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29797907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3848 + ... + 8625.

It is an arithmetic number, because the mean of its divisors is an integer number (7453215).

Almost surely, 2^29797997 is an apocalyptic number.

It is an amenable number.

29797997 is a deficient number, since it is larger than the sum of its proper divisors (14863).

29797997 is a wasteful number, since it uses less digits than its factorization.

29797997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14862.

The product of its digits is 4500846, while the sum is 59.

The square root of 29797997 is about 5458.7541618945. The cubic root of 29797997 is about 310.0242679580.

The spelling of 29797997 in words is "twenty-nine million, seven hundred ninety-seven thousand, nine hundred ninety-seven".