28484077 has 2 divisors, whose sum is σ = 28484078. Its totient is φ = 28484076.

The previous prime is 28484063. The next prime is 28484101. The reversal of 28484077 is 77048482.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28419561 + 64516 = 5331^2 + 254^2 .

It is a cyclic number.

It is not a de Polignac number, because 28484077 - 2¹¹ = 28482029 is a prime.

It is a super-2 number, since 2×28484077² = 1622685285083858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28484977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14242038 + 14242039.

It is an arithmetic number, because the mean of its divisors is an integer number (14242039).

Almost surely, 2^28484077 is an apocalyptic number.

It is an amenable number.

28484077 is a deficient number, since it is larger than the sum of its proper divisors (1).

28484077 is an equidigital number, since it uses as much as digits as its factorization.

28484077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100352, while the sum is 40.

The square root of 28484077 is about 5337.0475920681. The cubic root of 28484077 is about 305.3988403983.

The spelling of 28484077 in words is "twenty-eight million, four hundred eighty-four thousand, seventy-seven".