29669986 has 4 divisors (see below), whose sum is σ = 44504982. Its totient is φ = 14834992.

The previous prime is 29669971. The next prime is 29669989. The reversal of 29669986 is 68996692.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16120225 + 13549761 = 4015^2 + 3681^2 .

It is not an unprimeable number, because it can be changed into a prime (29669989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7417495 + ... + 7417498.

Almost surely, 2^29669986 is an apocalyptic number.

29669986 is a deficient number, since it is larger than the sum of its proper divisors (14834996).

29669986 is a wasteful number, since it uses less digits than its factorization.

29669986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14834995.

The product of its digits is 2519424, while the sum is 55.

The square root of 29669986 is about 5447.0162474514. The cubic root of 29669986 is about 309.5796800980.

The spelling of 29669986 in words is "twenty-nine million, six hundred sixty-nine thousand, nine hundred eighty-six".