29910897 has 8 divisors (see below), whose sum is σ = 44312480. Its totient is φ = 19940580.

The previous prime is 29910889. The next prime is 29910899. The reversal of 29910897 is 79801992.

It is not a de Polignac number, because 29910897 - 2³ = 29910889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29910899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553879 + ... + 553932.

It is an arithmetic number, because the mean of its divisors is an integer number (5539060).

Almost surely, 2^29910897 is an apocalyptic number.

29910897 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

29910897 is a deficient number, since it is larger than the sum of its proper divisors (14401583).

29910897 is a wasteful number, since it uses less digits than its factorization.

29910897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107820 (or 1107814 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 29910897 is about 5469.0855725615. The cubic root of 29910897 is about 310.4153191560.

The spelling of 29910897 in words is "twenty-nine million, nine hundred ten thousand, eight hundred ninety-seven".