29890389 has 4 divisors (see below), whose sum is σ = 39853856. Its totient is φ = 19926924.

The previous prime is 29890373. The next prime is 29890391. The reversal of 29890389 is 98309892.

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 not a de Polignac number, because 29890389 - 2⁴ = 29890373 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29890589) 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, 4981729 + ... + 4981734.

It is an arithmetic number, because the mean of its divisors is an integer number (9963464).

Almost surely, 2^29890389 is an apocalyptic number.

It is an amenable number.

29890389 is a deficient number, since it is larger than the sum of its proper divisors (9963467).

29890389 is an equidigital number, since it uses as much as digits as its factorization.

29890389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9963466.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 29890389 is about 5467.2103489805. The cubic root of 29890389 is about 310.3443589210.

The spelling of 29890389 in words is "twenty-nine million, eight hundred ninety thousand, three hundred eighty-nine".