29097855 has 12 divisors (see below), whose sum is σ = 50436360. Its totient is φ = 15518832.

The previous prime is 29097853. The next prime is 29097857. The reversal of 29097855 is 55879092.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (29097853) and next prime (29097857).

It is not a de Polignac number, because 29097855 - 2¹ = 29097853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 646619 = 29097855 / (2 + 9 + 0 + 9 + 7 + 8 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 29097855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29097853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 323265 + ... + 323354.

It is an arithmetic number, because the mean of its divisors is an integer number (4203030).

Almost surely, 2^29097855 is an apocalyptic number.

29097855 is a deficient number, since it is larger than the sum of its proper divisors (21338505).

29097855 is a wasteful number, since it uses less digits than its factorization.

29097855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646630 (or 646627 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 29097855 is about 5394.2427642812. The cubic root of 29097855 is about 307.5768596293.

The spelling of 29097855 in words is "twenty-nine million, ninety-seven thousand, eight hundred fifty-five".