29971682 has 8 divisors (see below), whose sum is σ = 48415836. Its totient is φ = 13833072.

The previous prime is 29971651. The next prime is 29971687. The reversal of 29971682 is 28617992.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21911761 + 8059921 = 4681^2 + 2839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (29971687) 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, 576353 + ... + 576404.

Almost surely, 2^29971682 is an apocalyptic number.

29971682 is a deficient number, since it is larger than the sum of its proper divisors (18444154).

29971682 is a wasteful number, since it uses less digits than its factorization.

29971682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152772.

The product of its digits is 108864, while the sum is 44.

The square root of 29971682 is about 5474.6398968334. The cubic root of 29971682 is about 310.6254524727.

The spelling of 29971682 in words is "twenty-nine million, nine hundred seventy-one thousand, six hundred eighty-two".