29903668 has 6 divisors (see below), whose sum is σ = 52331426. Its totient is φ = 14951832.

The previous prime is 29903651. The next prime is 29903683. The reversal of 29903668 is 86630992.

It can be written as a sum of positive squares in only one way, i.e., 24324624 + 5579044 = 4932^2 + 2362^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3737955 + ... + 3737962.

Almost surely, 2^29903668 is an apocalyptic number.

It is an amenable number.

29903668 is a deficient number, since it is larger than the sum of its proper divisors (22427758).

29903668 is a wasteful number, since it uses less digits than its factorization.

29903668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475921 (or 7475919 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 29903668 is about 5468.4246360355. The cubic root of 29903668 is about 310.3903096179.

The spelling of 29903668 in words is "twenty-nine million, nine hundred three thousand, six hundred sixty-eight".