28462769 has 2 divisors, whose sum is σ = 28462770. Its totient is φ = 28462768.

The previous prime is 28462747. The next prime is 28462781. The reversal of 28462769 is 96726482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23232400 + 5230369 = 4820^2 + 2287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28462769 is a prime.

It is a super-2 number, since 2×28462769² = 1620258438294722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28462729) by changing a digit.

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 as a sum of consecutive naturals, namely, 14231384 + 14231385.

It is an arithmetic number, because the mean of its divisors is an integer number (14231385).

Almost surely, 2^28462769 is an apocalyptic number.

It is an amenable number.

28462769 is a deficient number, since it is larger than the sum of its proper divisors (1).

28462769 is an equidigital number, since it uses as much as digits as its factorization.

28462769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The square root of 28462769 is about 5335.0509838239. The cubic root of 28462769 is about 305.3226684627.

The spelling of 28462769 in words is "twenty-eight million, four hundred sixty-two thousand, seven hundred sixty-nine".