28770601 has 2 divisors, whose sum is σ = 28770602. Its totient is φ = 28770600.

The previous prime is 28770551. The next prime is 28770611. The reversal of 28770601 is 10607782.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23775376 + 4995225 = 4876^2 + 2235^2 .

It is a cyclic number.

It is not a de Polignac number, because 28770601 - 2⁷ = 28770473 is a prime.

It is not a weakly prime, because it can be changed into another prime (28770611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14385300 + 14385301.

It is an arithmetic number, because the mean of its divisors is an integer number (14385301).

Almost surely, 2^28770601 is an apocalyptic number.

It is an amenable number.

28770601 is a deficient number, since it is larger than the sum of its proper divisors (1).

28770601 is an equidigital number, since it uses as much as digits as its factorization.

28770601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 28770601 is about 5363.8233565247. The cubic root of 28770601 is about 306.4194377671.

The spelling of 28770601 in words is "twenty-eight million, seven hundred seventy thousand, six hundred one".