29997982 has 8 divisors (see below), whose sum is σ = 51425136. Its totient is φ = 12856272.

The previous prime is 29997973. The next prime is 29997983. The reversal of 29997982 is 28979992.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29997983) 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, 1071343 + ... + 1071370.

It is an arithmetic number, because the mean of its divisors is an integer number (6428142).

Almost surely, 2^29997982 is an apocalyptic number.

29997982 is a deficient number, since it is larger than the sum of its proper divisors (21427154).

29997982 is a wasteful number, since it uses less digits than its factorization.

29997982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142722.

The product of its digits is 1469664, while the sum is 55.

The square root of 29997982 is about 5477.0413546001. The cubic root of 29997982 is about 310.7162833334.

The spelling of 29997982 in words is "twenty-nine million, nine hundred ninety-seven thousand, nine hundred eighty-two".