3057905 has 8 divisors (see below), whose sum is σ = 3796200. Its totient is φ = 2361856.

The previous prime is 3057883. The next prime is 3057913. The reversal of 3057905 is 5097503.

It can be written as a sum of positive squares in 4 ways, for example, as 1183744 + 1874161 = 1088^2 + 1369^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3057905 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 10400 + ... + 10689.

It is an arithmetic number, because the mean of its divisors is an integer number (474525).

Almost surely, 2^3057905 is an apocalyptic number.

It is an amenable number.

3057905 is a deficient number, since it is larger than the sum of its proper divisors (738295).

3057905 is a wasteful number, since it uses less digits than its factorization.

3057905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21123.

The product of its (nonzero) digits is 4725, while the sum is 29.

The square root of 3057905 is about 1748.6866500320. The cubic root of 3057905 is about 145.1469774047.

The spelling of 3057905 in words is "three million, fifty-seven thousand, nine hundred five".