28534501 has 2 divisors, whose sum is σ = 28534502. Its totient is φ = 28534500.

The previous prime is 28534423. The next prime is 28534507. The reversal of 28534501 is 10543582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16597476 + 11937025 = 4074^2 + 3455^2 .

It is a cyclic number.

It is not a de Polignac number, because 28534501 - 2¹⁷ = 28403429 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28534501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28534507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14267250 + 14267251.

It is an arithmetic number, because the mean of its divisors is an integer number (14267251).

Almost surely, 2^28534501 is an apocalyptic number.

It is an amenable number.

28534501 is a deficient number, since it is larger than the sum of its proper divisors (1).

28534501 is an equidigital number, since it uses as much as digits as its factorization.

28534501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 28534501 is about 5341.7694633894. The cubic root of 28534501 is about 305.5789451529.

The spelling of 28534501 in words is "twenty-eight million, five hundred thirty-four thousand, five hundred one".