8725961 has 2 divisors, whose sum is σ = 8725962. Its totient is φ = 8725960.

The previous prime is 8725949. The next prime is 8725963. The reversal of 8725961 is 1695278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7812025 + 913936 = 2795^2 + 956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8725961 is a prime.

It is a super-2 number, since 2×8725961² = 152284790747042, which contains 22 as substring.

Together with 8725963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8725963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4362980 + 4362981.

It is an arithmetic number, because the mean of its divisors is an integer number (4362981).

Almost surely, 2^8725961 is an apocalyptic number.

It is an amenable number.

8725961 is a deficient number, since it is larger than the sum of its proper divisors (1).

8725961 is an equidigital number, since it uses as much as digits as its factorization.

8725961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 8725961 is about 2953.9737642708. The cubic root of 8725961 is about 205.8753841467.

The spelling of 8725961 in words is "eight million, seven hundred twenty-five thousand, nine hundred sixty-one".