28622395 has 4 divisors (see below), whose sum is σ = 34346880. Its totient is φ = 22897912.

The previous prime is 28622383. The next prime is 28622413. The reversal of 28622395 is 59322682.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59322682 = 2 ⋅29661341.

It is a cyclic number.

It is not a de Polignac number, because 28622395 - 2⁷ = 28622267 is a prime.

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, 2862235 + ... + 2862244.

It is an arithmetic number, because the mean of its divisors is an integer number (8586720).

Almost surely, 2^28622395 is an apocalyptic number.

28622395 is a deficient number, since it is larger than the sum of its proper divisors (5724485).

28622395 is an equidigital number, since it uses as much as digits as its factorization.

28622395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724484.

The product of its digits is 51840, while the sum is 37.

The square root of 28622395 is about 5349.9901869069. The cubic root of 28622395 is about 305.8923788881.

The spelling of 28622395 in words is "twenty-eight million, six hundred twenty-two thousand, three hundred ninety-five".