29987974 has 32 divisors (see below), whose sum is σ = 48771072. Its totient is φ = 13800000.

The previous prime is 29987963. The next prime is 29987977. The reversal of 29987974 is 47978992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29987977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119349 + ... + 119599.

It is an arithmetic number, because the mean of its divisors is an integer number (1524096).

Almost surely, 2^29987974 is an apocalyptic number.

29987974 is a deficient number, since it is larger than the sum of its proper divisors (18783098).

29987974 is a wasteful number, since it uses less digits than its factorization.

29987974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372.

The product of its digits is 2286144, while the sum is 55.

The square root of 29987974 is about 5476.1276464305. The cubic root of 29987974 is about 310.6817255150.

The spelling of 29987974 in words is "twenty-nine million, nine hundred eighty-seven thousand, nine hundred seventy-four".