29998261 has 4 divisors (see below), whose sum is σ = 30014572. Its totient is φ = 29981952.

The previous prime is 29998259. The next prime is 29998271. The reversal of 29998261 is 16289992.

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 13950225 + 16048036 = 3735^2 + 4006^2 .

It is a cyclic number.

It is not a de Polignac number, because 29998261 - 2¹ = 29998259 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 (29998271) 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, 4986 + ... + 9211.

It is an arithmetic number, because the mean of its divisors is an integer number (7503643).

Almost surely, 2^29998261 is an apocalyptic number.

It is an amenable number.

29998261 is a deficient number, since it is larger than the sum of its proper divisors (16311).

29998261 is a wasteful number, since it uses less digits than its factorization.

29998261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16310.

The product of its digits is 139968, while the sum is 46.

The square root of 29998261 is about 5477.0668244965. The cubic root of 29998261 is about 310.7172466157.

The spelling of 29998261 in words is "twenty-nine million, nine hundred ninety-eight thousand, two hundred sixty-one".