28314977 has 2 divisors, whose sum is σ = 28314978. Its totient is φ = 28314976.

The previous prime is 28314971. The next prime is 28314983. The reversal of 28314977 is 77941382.

It is a balanced prime because it is at equal distance from previous prime (28314971) and next prime (28314983).

It can be written as a sum of positive squares in only one way, i.e., 28313041 + 1936 = 5321^2 + 44^2 .

It is a cyclic number.

It is not a de Polignac number, because 28314977 - 2⁴ = 28314961 is a prime.

It is equal to p_1759856 and since 28314977 and 1759856 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (28314971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14157488 + 14157489.

It is an arithmetic number, because the mean of its divisors is an integer number (14157489).

Almost surely, 2^28314977 is an apocalyptic number.

It is an amenable number.

28314977 is a deficient number, since it is larger than the sum of its proper divisors (1).

28314977 is an equidigital number, since it uses as much as digits as its factorization.

28314977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 28314977 is about 5321.1819175818. The cubic root of 28314977 is about 304.7932918121.

The spelling of 28314977 in words is "twenty-eight million, three hundred fourteen thousand, nine hundred seventy-seven".