29712070 has 16 divisors (see below), whose sum is σ = 54034848. Its totient is φ = 11761920.

The previous prime is 29712049. The next prime is 29712071. The reversal of 29712070 is 7021792.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29712071) 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, 14346 + ... + 16285.

It is an arithmetic number, because the mean of its divisors is an integer number (3377178).

Almost surely, 2^29712070 is an apocalyptic number.

29712070 is a deficient number, since it is larger than the sum of its proper divisors (24322778).

29712070 is a wasteful number, since it uses less digits than its factorization.

29712070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30735.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 29712070 is about 5450.8779109424. The cubic root of 29712070 is about 309.7259805410.

It can be divided in two parts, 2971 and 2070, that added together give a square (5041 = 71²).

The spelling of 29712070 in words is "twenty-nine million, seven hundred twelve thousand, seventy".