28586429 has 2 divisors, whose sum is σ = 28586430. Its totient is φ = 28586428.

The previous prime is 28586423. The next prime is 28586461. The reversal of 28586429 is 92468582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26112100 + 2474329 = 5110^2 + 1573^2 .

It is a cyclic number.

It is not a de Polignac number, because 28586429 - 2¹⁶ = 28520893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28586429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28586423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14293214 + 14293215.

It is an arithmetic number, because the mean of its divisors is an integer number (14293215).

Almost surely, 2^28586429 is an apocalyptic number.

It is an amenable number.

28586429 is a deficient number, since it is larger than the sum of its proper divisors (1).

28586429 is an equidigital number, since it uses as much as digits as its factorization.

28586429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 44.

The square root of 28586429 is about 5346.6278157358. The cubic root of 28586429 is about 305.7642002753.

The spelling of 28586429 in words is "twenty-eight million, five hundred eighty-six thousand, four hundred twenty-nine".