28071622 has 8 divisors (see below), whose sum is σ = 42130872. Its totient is φ = 14028000.

The previous prime is 28071613. The next prime is 28071653. The reversal of 28071622 is 22617082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 3097 + ... + 8107.

It is an arithmetic number, because the mean of its divisors is an integer number (5266359).

Almost surely, 2^28071622 is an apocalyptic number.

28071622 is a deficient number, since it is larger than the sum of its proper divisors (14059250).

28071622 is a wasteful number, since it uses less digits than its factorization.

28071622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7814.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 28071622 is about 5298.2659427401. The cubic root of 28071622 is about 303.9175893305.

The spelling of 28071622 in words is "twenty-eight million, seventy-one thousand, six hundred twenty-two".