8461405 has 8 divisors (see below), whose sum is σ = 10179000. Its totient is φ = 6752256.

The previous prime is 8461399. The next prime is 8461423. The reversal of 8461405 is 5041648.

It can be written as a sum of positive squares in 4 ways, for example, as 2365444 + 6095961 = 1538^2 + 2469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8461405 - 2⁵ = 8461373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361 + ... + 4129.

It is an arithmetic number, because the mean of its divisors is an integer number (1272375).

Almost surely, 2^8461405 is an apocalyptic number.

It is an amenable number.

8461405 is a deficient number, since it is larger than the sum of its proper divisors (1717595).

8461405 is a wasteful number, since it uses less digits than its factorization.

8461405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 8461405 is about 2908.8494288980. The cubic root of 8461405 is about 203.7734011538.

The spelling of 8461405 in words is "eight million, four hundred sixty-one thousand, four hundred five".