8457961 has 4 divisors (see below), whose sum is σ = 8469892. Its totient is φ = 8446032.

The previous prime is 8457923. The next prime is 8457973. The reversal of 8457961 is 1697548.

8457961 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4596736 + 3861225 = 2144^2 + 1965^2 .

It is a cyclic number.

It is not a de Polignac number, because 8457961 - 2¹¹ = 8455913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8457901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4830 + ... + 6343.

It is an arithmetic number, because the mean of its divisors is an integer number (2117473).

Almost surely, 2^8457961 is an apocalyptic number.

It is an amenable number.

8457961 is a deficient number, since it is larger than the sum of its proper divisors (11931).

8457961 is a wasteful number, since it uses less digits than its factorization.

8457961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11930.

The product of its digits is 60480, while the sum is 40.

The square root of 8457961 is about 2908.2573820073. The cubic root of 8457961 is about 203.7457504728.

The spelling of 8457961 in words is "eight million, four hundred fifty-seven thousand, nine hundred sixty-one".