8057405 has 8 divisors (see below), whose sum is σ = 10237752. Its totient is φ = 6066688.

The previous prime is 8057393. The next prime is 8057411. The reversal of 8057405 is 5047508.

It can be written as a sum of positive squares in 4 ways, for example, as 116281 + 7941124 = 341^2 + 2818^2 .

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

It is not a de Polignac number, because 8057405 - 2¹⁰ = 8056381 is a prime.

It is a Duffinian number.

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, 47312 + ... + 47481.

It is an arithmetic number, because the mean of its divisors is an integer number (1279719).

Almost surely, 2^8057405 is an apocalyptic number.

8057405 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8057405 is a deficient number, since it is larger than the sum of its proper divisors (2180347).

8057405 is a wasteful number, since it uses less digits than its factorization.

8057405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94815.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 8057405 is about 2838.5568516413. The cubic root of 8057405 is about 200.4772353264.

The spelling of 8057405 in words is "eight million, fifty-seven thousand, four hundred five".