29913897 has 16 divisors (see below), whose sum is σ = 45480960. Its totient is φ = 17325312.

The previous prime is 29913839. The next prime is 29913901. The reversal of 29913897 is 79831992.

It is not a de Polignac number, because 29913897 - 2⁷ = 29913769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29913497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21897 + ... + 23222.

It is an arithmetic number, because the mean of its divisors is an integer number (2842560).

Almost surely, 2^29913897 is an apocalyptic number.

It is an amenable number.

29913897 is a deficient number, since it is larger than the sum of its proper divisors (15567063).

29913897 is a wasteful number, since it uses less digits than its factorization.

29913897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45152.

The product of its digits is 244944, while the sum is 48.

The square root of 29913897 is about 5469.3598345693. The cubic root of 29913897 is about 310.4256968100.

It can be divided in two parts, 299 and 13897, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 29913897 in words is "twenty-nine million, nine hundred thirteen thousand, eight hundred ninety-seven".