29920797 has 12 divisors (see below), whose sum is σ = 44613504. Its totient is φ = 19303560.

The previous prime is 29920777. The next prime is 29920823. The reversal of 29920797 is 79702992.

It is not a de Polignac number, because 29920797 - 2⁷ = 29920669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29920727) 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, 53343 + ... + 53900.

It is an arithmetic number, because the mean of its divisors is an integer number (3717792).

Almost surely, 2^29920797 is an apocalyptic number.

It is an amenable number.

29920797 is a deficient number, since it is larger than the sum of its proper divisors (14692707).

29920797 is a wasteful number, since it uses less digits than its factorization.

29920797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107280 (or 107277 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 29920797 is about 5469.9905850010. The cubic root of 29920797 is about 310.4495627815.

The spelling of 29920797 in words is "twenty-nine million, nine hundred twenty thousand, seven hundred ninety-seven".