28460001 has 4 divisors (see below), whose sum is σ = 37946672. Its totient is φ = 18973332.

The previous prime is 28459979. The next prime is 28460011. The reversal of 28460001 is 10006482.

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 28460001 - 2¹³ = 28451809 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 28460001.

It is not an unprimeable number, because it can be changed into a prime (28460011) 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, 4743331 + ... + 4743336.

It is an arithmetic number, because the mean of its divisors is an integer number (9486668).

Almost surely, 2^28460001 is an apocalyptic number.

It is an amenable number.

28460001 is a deficient number, since it is larger than the sum of its proper divisors (9486671).

28460001 is an equidigital number, since it uses as much as digits as its factorization.

28460001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9486670.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 28460001 is about 5334.7915610640. The cubic root of 28460001 is about 305.3127706140.

Adding to 28460001 its reverse (10006482), we get a palindrome (38466483).

The spelling of 28460001 in words is "twenty-eight million, four hundred sixty thousand, one".