29997955 has 8 divisors (see below), whose sum is σ = 38766672. Its totient is φ = 22152288.

The previous prime is 29997953. The next prime is 29997973. The reversal of 29997955 is 55979992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29997955 - 2¹ = 29997953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29997896 and 29997905.

It is not an unprimeable number, because it can be changed into a prime (29997953) 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, 230689 + ... + 230818.

It is an arithmetic number, because the mean of its divisors is an integer number (4845834).

Almost surely, 2^29997955 is an apocalyptic number.

29997955 is a deficient number, since it is larger than the sum of its proper divisors (8768717).

29997955 is a wasteful number, since it uses less digits than its factorization.

29997955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461525.

The product of its digits is 2296350, while the sum is 55.

The square root of 29997955 is about 5477.0388897652. The cubic root of 29997955 is about 310.7161901122.

The spelling of 29997955 in words is "twenty-nine million, nine hundred ninety-seven thousand, nine hundred fifty-five".