28629201 has 4 divisors (see below), whose sum is σ = 38172272. Its totient is φ = 19086132.

The previous prime is 28629199. The next prime is 28629217. The reversal of 28629201 is 10292682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 28629201 - 2¹ = 28629199 is a prime.

It is a super-2 number, since 2×28629201² = 1639262299796802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28629001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4771531 + ... + 4771536.

It is an arithmetic number, because the mean of its divisors is an integer number (9543068).

Almost surely, 2^28629201 is an apocalyptic number.

It is an amenable number.

28629201 is a deficient number, since it is larger than the sum of its proper divisors (9543071).

28629201 is an equidigital number, since it uses as much as digits as its factorization.

28629201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9543070.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 28629201 is about 5350.6262250320. The cubic root of 28629201 is about 305.9166225911.

The spelling of 28629201 in words is "twenty-eight million, six hundred twenty-nine thousand, two hundred one".