29742861 has 4 divisors (see below), whose sum is σ = 39657152. Its totient is φ = 19828572.

The previous prime is 29742851. The next prime is 29742871. The reversal of 29742861 is 16824792.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (29742851) and next prime (29742871).

It is not a de Polignac number, because 29742861 - 2⁵ = 29742829 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 (29742851) 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, 4957141 + ... + 4957146.

It is an arithmetic number, because the mean of its divisors is an integer number (9914288).

Almost surely, 2^29742861 is an apocalyptic number.

It is an amenable number.

29742861 is a deficient number, since it is larger than the sum of its proper divisors (9914291).

29742861 is an equidigital number, since it uses as much as digits as its factorization.

29742861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9914290.

The product of its digits is 48384, while the sum is 39.

The square root of 29742861 is about 5453.7015869958. The cubic root of 29742861 is about 309.8329346083.

It can be divided in two parts, 29742 and 861, that added together give a palindrome (30603).

The spelling of 29742861 in words is "twenty-nine million, seven hundred forty-two thousand, eight hundred sixty-one".