29109423 has 32 divisors (see below), whose sum is σ = 47706624. Its totient is φ = 15409152.

The previous prime is 29109419. The next prime is 29109427. The reversal of 29109423 is 32490192.

It is an interprime number because it is at equal distance from previous prime (29109419) and next prime (29109427).

It is not a de Polignac number, because 29109423 - 2² = 29109419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29109427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23311 + ... + 24527.

It is an arithmetic number, because the mean of its divisors is an integer number (1490832).

Almost surely, 2^29109423 is an apocalyptic number.

29109423 is a deficient number, since it is larger than the sum of its proper divisors (18597201).

29109423 is a wasteful number, since it uses less digits than its factorization.

29109423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 29109423 is about 5395.3149120325. The cubic root of 29109423 is about 307.6176138099.

The spelling of 29109423 in words is "twenty-nine million, one hundred nine thousand, four hundred twenty-three".