29908961 has 4 divisors (see below), whose sum is σ = 30188592. Its totient is φ = 29629332.

The previous prime is 29908927. The next prime is 29908979. The reversal of 29908961 is 16980992.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29908961 - 2⁶ = 29908897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29908981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139655 + ... + 139868.

It is an arithmetic number, because the mean of its divisors is an integer number (7547148).

Almost surely, 2^29908961 is an apocalyptic number.

It is an amenable number.

29908961 is a deficient number, since it is larger than the sum of its proper divisors (279631).

29908961 is a wasteful number, since it uses less digits than its factorization.

29908961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279630.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 29908961 is about 5468.9085748438. The cubic root of 29908961 is about 310.4086217415.

The spelling of 29908961 in words is "twenty-nine million, nine hundred eight thousand, nine hundred sixty-one".