29894161 has 4 divisors (see below), whose sum is σ = 32611824. Its totient is φ = 27176500.

The previous prime is 29894147. The next prime is 29894167. The reversal of 29894161 is 16149892.

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 29894161 - 2⁵ = 29894129 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29894167) 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, 1358815 + ... + 1358836.

It is an arithmetic number, because the mean of its divisors is an integer number (8152956).

Almost surely, 2^29894161 is an apocalyptic number.

It is an amenable number.

29894161 is a deficient number, since it is larger than the sum of its proper divisors (2717663).

29894161 is a wasteful number, since it uses less digits than its factorization.

29894161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717662.

The product of its digits is 31104, while the sum is 40.

The square root of 29894161 is about 5467.5553037898. Note that the first 3 decimals coincide. The cubic root of 29894161 is about 310.3574129463.

The spelling of 29894161 in words is "twenty-nine million, eight hundred ninety-four thousand, one hundred sixty-one".