28777334 has 4 divisors (see below), whose sum is σ = 43166004. Its totient is φ = 14388666.

The previous prime is 28777327. The next prime is 28777337. The reversal of 28777334 is 43377782.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28777291 and 28777300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28777337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7194332 + ... + 7194335.

It is an arithmetic number, because the mean of its divisors is an integer number (10791501).

Almost surely, 2^28777334 is an apocalyptic number.

28777334 is a deficient number, since it is larger than the sum of its proper divisors (14388670).

28777334 is a wasteful number, since it uses less digits than its factorization.

28777334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14388669.

The product of its digits is 197568, while the sum is 41.

The square root of 28777334 is about 5364.4509504701. The cubic root of 28777334 is about 306.4433390307.

The spelling of 28777334 in words is "twenty-eight million, seven hundred seventy-seven thousand, three hundred thirty-four".