29971612 has 36 divisors (see below), whose sum is σ = 60808104. Its totient is φ = 12816640.

The previous prime is 29971577. The next prime is 29971651. The reversal of 29971612 is 21617992.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11538 + ... + 13894.

It is an arithmetic number, because the mean of its divisors is an integer number (1689114).

Almost surely, 2^29971612 is an apocalyptic number.

29971612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

29971612 is an abundant number, since it is smaller than the sum of its proper divisors (30836492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29971612 is a wasteful number, since it uses less digits than its factorization.

29971612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406 (or 2387 counting only the distinct ones).

The product of its digits is 13608, while the sum is 37.

The square root of 29971612 is about 5474.6335037151. The cubic root of 29971612 is about 310.6252106467.

The spelling of 29971612 in words is "twenty-nine million, nine hundred seventy-one thousand, six hundred twelve".