29628427 has 4 divisors (see below), whose sum is σ = 29985480. Its totient is φ = 29271376.

The previous prime is 29628421. The next prime is 29628457. The reversal of 29628427 is 72482692.

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

It is a cyclic number.

It is not a de Polignac number, because 29628427 - 2¹⁵ = 29595659 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29628427.

It is not an unprimeable number, because it can be changed into a prime (29628421) 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, 178402 + ... + 178567.

It is an arithmetic number, because the mean of its divisors is an integer number (7496370).

Almost surely, 2^29628427 is an apocalyptic number.

29628427 is a deficient number, since it is larger than the sum of its proper divisors (357053).

29628427 is an equidigital number, since it uses as much as digits as its factorization.

29628427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357052.

The product of its digits is 96768, while the sum is 40.

The square root of 29628427 is about 5443.2000698119. The cubic root of 29628427 is about 309.4350689333.

The spelling of 29628427 in words is "twenty-nine million, six hundred twenty-eight thousand, four hundred twenty-seven".