29969672 has 8 divisors (see below), whose sum is σ = 56193150. Its totient is φ = 14984832.

The previous prime is 29969671. The next prime is 29969701. The reversal of 29969672 is 27696992.

It can be written as a sum of positive squares in only one way, i.e., 28026436 + 1943236 = 5294^2 + 1394^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 29969672.

It is not an unprimeable number, because it can be changed into a prime (29969671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1873097 + ... + 1873112.

Almost surely, 2^29969672 is an apocalyptic number.

It is an amenable number.

29969672 is a deficient number, since it is larger than the sum of its proper divisors (26223478).

29969672 is a wasteful number, since it uses less digits than its factorization.

29969672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746215 (or 3746211 counting only the distinct ones).

The product of its digits is 734832, while the sum is 50.

The square root of 29969672 is about 5474.4563200376. The cubic root of 29969672 is about 310.6185084612.

The spelling of 29969672 in words is "twenty-nine million, nine hundred sixty-nine thousand, six hundred seventy-two".