29768897 has 6 divisors (see below), whose sum is σ = 30761154. Its totient is φ = 28807680.

The previous prime is 29768891. The next prime is 29768909. The reversal of 29768897 is 79886792.

It can be written as a sum of positive squares in only one way, i.e., 29767936 + 961 = 5456^2 + 31^2 .

It is a de Polignac number, because none of the positive numbers 2^k-29768897 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 (29768891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14528 + ... + 16449.

It is an arithmetic number, because the mean of its divisors is an integer number (5126859).

Almost surely, 2^29768897 is an apocalyptic number.

It is an amenable number.

29768897 is a deficient number, since it is larger than the sum of its proper divisors (992257).

29768897 is an equidigital number, since it uses as much as digits as its factorization.

29768897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31039 (or 31008 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 56.

The square root of 29768897 is about 5456.0880674711. The cubic root of 29768897 is about 309.9233143649.

The spelling of 29768897 in words is "twenty-nine million, seven hundred sixty-eight thousand, eight hundred ninety-seven".