29890961 has 8 divisors (see below), whose sum is σ = 31479360. Its totient is φ = 28326672.

The previous prime is 29890957. The next prime is 29890969. The reversal of 29890961 is 16909892.

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 29890961 - 2² = 29890957 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 (29890969) 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, 3455 + ... + 8468.

It is an arithmetic number, because the mean of its divisors is an integer number (3934920).

Almost surely, 2^29890961 is an apocalyptic number.

It is an amenable number.

29890961 is a deficient number, since it is larger than the sum of its proper divisors (1588399).

29890961 is a wasteful number, since it uses less digits than its factorization.

29890961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12055.

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

The square root of 29890961 is about 5467.2626606008. The cubic root of 29890961 is about 310.3463385522.

The spelling of 29890961 in words is "twenty-nine million, eight hundred ninety thousand, nine hundred sixty-one".