28651301 has 4 divisors (see below), whose sum is σ = 32744352. Its totient is φ = 24558252.

The previous prime is 28651291. The next prime is 28651303. The reversal of 28651301 is 10315682.

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 a cyclic number.

It is not a de Polignac number, because 28651301 - 2⁶ = 28651237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28651303) 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, 2046515 + ... + 2046528.

It is an arithmetic number, because the mean of its divisors is an integer number (8186088).

Almost surely, 2^28651301 is an apocalyptic number.

It is an amenable number.

28651301 is a deficient number, since it is larger than the sum of its proper divisors (4093051).

28651301 is an equidigital number, since it uses as much as digits as its factorization.

28651301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4093050.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 28651301 is about 5352.6910054663. The cubic root of 28651301 is about 305.9953186804.

Adding to 28651301 its reverse (10315682), we get a palindrome (38966983).

The spelling of 28651301 in words is "twenty-eight million, six hundred fifty-one thousand, three hundred one".