28373855 has 8 divisors (see below), whose sum is σ = 34077264. Its totient is φ = 22680000.

The previous prime is 28373837. The next prime is 28373879. The reversal of 28373855 is 55837382.

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

It is not a de Polignac number, because 28373855 - 2⁶ = 28373791 is a prime.

It is a super-2 number, since 2×28373855² = 1610151295122050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9995 + ... + 12515.

It is an arithmetic number, because the mean of its divisors is an integer number (4259658).

Almost surely, 2^28373855 is an apocalyptic number.

28373855 is a deficient number, since it is larger than the sum of its proper divisors (5703409).

28373855 is a wasteful number, since it uses less digits than its factorization.

28373855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777.

The product of its digits is 201600, while the sum is 41.

The square root of 28373855 is about 5326.7114620561. The cubic root of 28373855 is about 305.0044073537.

The spelling of 28373855 in words is "twenty-eight million, three hundred seventy-three thousand, eight hundred fifty-five".