8728901 has 2 divisors, whose sum is σ = 8728902. Its totient is φ = 8728900.

The previous prime is 8728897. The next prime is 8728903. The reversal of 8728901 is 1098278.

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., 6120676 + 2608225 = 2474^2 + 1615^2 .

It is a cyclic number.

It is not a de Polignac number, because 8728901 - 2² = 8728897 is a prime.

Together with 8728903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8728903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4364450 + 4364451.

It is an arithmetic number, because the mean of its divisors is an integer number (4364451).

Almost surely, 2^8728901 is an apocalyptic number.

It is an amenable number.

8728901 is a deficient number, since it is larger than the sum of its proper divisors (1).

8728901 is an equidigital number, since it uses as much as digits as its factorization.

8728901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 8728901 is about 2954.4713571128. The cubic root of 8728901 is about 205.8985031156.

The spelling of 8728901 in words is "eight million, seven hundred twenty-eight thousand, nine hundred one".