28777052 has 12 divisors (see below), whose sum is σ = 51984576. Its totient is φ = 13924320.

The previous prime is 28777051. The next prime is 28777069. The reversal of 28777052 is 25077782.

It is a junction number, because it is equal to n+sod(n) for n = 28776997 and 28777015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28777051) 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, 115913 + ... + 116160.

It is an arithmetic number, because the mean of its divisors is an integer number (4332048).

Almost surely, 2^28777052 is an apocalyptic number.

It is an amenable number.

28777052 is a deficient number, since it is larger than the sum of its proper divisors (23207524).

28777052 is a wasteful number, since it uses less digits than its factorization.

28777052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232108 (or 232106 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 28777052 is about 5364.4246662620. The cubic root of 28777052 is about 306.4423380426.

The spelling of 28777052 in words is "twenty-eight million, seven hundred seventy-seven thousand, fifty-two".