8461511 has 2 divisors, whose sum is σ = 8461512. Its totient is φ = 8461510.

The previous prime is 8461507. The next prime is 8461513. The reversal of 8461511 is 1151648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8461511 - 2² = 8461507 is a prime.

Together with 8461513, 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 (8461513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4230755 + 4230756.

It is an arithmetic number, because the mean of its divisors is an integer number (4230756).

Almost surely, 2^8461511 is an apocalyptic number.

8461511 is a deficient number, since it is larger than the sum of its proper divisors (1).

8461511 is an equidigital number, since it uses as much as digits as its factorization.

8461511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 26.

The square root of 8461511 is about 2908.8676491033. The cubic root of 8461511 is about 203.7742520720.

The spelling of 8461511 in words is "eight million, four hundred sixty-one thousand, five hundred eleven".