29697161 has 8 divisors (see below), whose sum is σ = 32762184. Its totient is φ = 26743680.

The previous prime is 29697149. The next prime is 29697167. The reversal of 29697161 is 16179692.

It can be written as a sum of positive squares in 4 ways, for example, as 913936 + 28783225 = 956^2 + 5365^2 .

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 29697161 - 2¹⁰ = 29696137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (29697167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27326 + ... + 28391.

It is an arithmetic number, because the mean of its divisors is an integer number (4095273).

Almost surely, 2^29697161 is an apocalyptic number.

It is an amenable number.

29697161 is a deficient number, since it is larger than the sum of its proper divisors (3065023).

29697161 is a wasteful number, since it uses less digits than its factorization.

29697161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55771.

The product of its digits is 40824, while the sum is 41.

The square root of 29697161 is about 5449.5101614732. The cubic root of 29697161 is about 309.6741668368.

The spelling of 29697161 in words is "twenty-nine million, six hundred ninety-seven thousand, one hundred sixty-one".