29272885 has 4 divisors (see below), whose sum is σ = 35127468. Its totient is φ = 23418304.

The previous prime is 29272877. The next prime is 29272891. The reversal of 29272885 is 58827292.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16016004 + 13256881 = 4002^2 + 3641^2 .

It is a cyclic number.

It is not a de Polignac number, because 29272885 - 2³ = 29272877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2927284 + ... + 2927293.

It is an arithmetic number, because the mean of its divisors is an integer number (8781867).

Almost surely, 2^29272885 is an apocalyptic number.

It is an amenable number.

29272885 is a deficient number, since it is larger than the sum of its proper divisors (5854583).

29272885 is an equidigital number, since it uses as much as digits as its factorization.

29272885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5854582.

The product of its digits is 161280, while the sum is 43.

The square root of 29272885 is about 5410.4422185252. The cubic root of 29272885 is about 308.1923413495.

The spelling of 29272885 in words is "twenty-nine million, two hundred seventy-two thousand, eight hundred eighty-five".