29970897 has 12 divisors (see below), whose sum is σ = 43639824. Its totient is φ = 18145120.

The previous prime is 29970887. The next prime is 29970901. The reversal of 29970897 is 79807992.

It is a happy number.

It is not a de Polignac number, because 29970897 - 2¹¹ = 29968849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29970827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30973 + ... + 31925.

It is an arithmetic number, because the mean of its divisors is an integer number (3636652).

Almost surely, 2^29970897 is an apocalyptic number.

It is an amenable number.

29970897 is a deficient number, since it is larger than the sum of its proper divisors (13668927).

29970897 is an frugal number, since it uses more digits than its factorization.

29970897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 51.

The square root of 29970897 is about 5474.5682021507. The cubic root of 29970897 is about 310.6227405450.

The spelling of 29970897 in words is "twenty-nine million, nine hundred seventy thousand, eight hundred ninety-seven".