29139078 has 16 divisors (see below), whose sum is σ = 58705200. Its totient is φ = 9641856.

The previous prime is 29139073. The next prime is 29139083. The reversal of 29139078 is 87093192.

It is an interprime number because it is at equal distance from previous prime (29139073) and next prime (29139083).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29139073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16903 + ... + 18546.

It is an arithmetic number, because the mean of its divisors is an integer number (3669075).

Almost surely, 2^29139078 is an apocalyptic number.

29139078 is an abundant number, since it is smaller than the sum of its proper divisors (29566122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29139078 is a wasteful number, since it uses less digits than its factorization.

29139078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35591.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 29139078 is about 5398.0624301688. The cubic root of 29139078 is about 307.7220393802.

The spelling of 29139078 in words is "twenty-nine million, one hundred thirty-nine thousand, seventy-eight".