28486501 has 2 divisors, whose sum is σ = 28486502. Its totient is φ = 28486500.

The previous prime is 28486433. The next prime is 28486517. The reversal of 28486501 is 10568482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23755876 + 4730625 = 4874^2 + 2175^2 .

It is a cyclic number.

It is not a de Polignac number, because 28486501 - 2¹¹ = 28484453 is a prime.

It is a super-2 number, since 2×28486501² = 1622961478446002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28486541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14243250 + 14243251.

It is an arithmetic number, because the mean of its divisors is an integer number (14243251).

Almost surely, 2^28486501 is an apocalyptic number.

It is an amenable number.

28486501 is a deficient number, since it is larger than the sum of its proper divisors (1).

28486501 is an equidigital number, since it uses as much as digits as its factorization.

28486501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 28486501 is about 5337.2746790848. The cubic root of 28486501 is about 305.4075033177.

The spelling of 28486501 in words is "twenty-eight million, four hundred eighty-six thousand, five hundred one".