29689090 has 16 divisors (see below), whose sum is σ = 55764288. Its totient is φ = 11359216.

The previous prime is 29689087. The next prime is 29689091. The reversal of 29689090 is 9098692.

It is not an unprimeable number, because it can be changed into a prime (29689091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64312 + ... + 64771.

It is an arithmetic number, because the mean of its divisors is an integer number (3485268).

Almost surely, 2^29689090 is an apocalyptic number.

29689090 is a deficient number, since it is larger than the sum of its proper divisors (26075198).

29689090 is a wasteful number, since it uses less digits than its factorization.

29689090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129113.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 29689090 is about 5448.7695858790. The cubic root of 29689090 is about 309.6461102081.

The spelling of 29689090 in words is "twenty-nine million, six hundred eighty-nine thousand, ninety".