57858749 has 8 divisors (see below), whose sum is σ = 63829752. Its totient is φ = 52104960.

The previous prime is 57858737. The next prime is 57858761. The reversal of 57858749 is 94785875.

It is an interprime number because it is at equal distance from previous prime (57858737) and next prime (57858761).

It can be written as a sum of positive squares in 4 ways, for example, as 174724 + 57684025 = 418^2 + 7595^2 .

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-57858749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57858749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57858709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53744 + ... + 54809.

It is an arithmetic number, because the mean of its divisors is an integer number (7978719).

Almost surely, 2^57858749 is an apocalyptic number.

It is an amenable number.

57858749 is a deficient number, since it is larger than the sum of its proper divisors (5971003).

57858749 is a wasteful number, since it uses less digits than its factorization.

57858749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108607.

The product of its digits is 2822400, while the sum is 53.

The square root of 57858749 is about 7606.4938703716. The cubic root of 57858749 is about 386.7731757553.

The spelling of 57858749 in words is "fifty-seven million, eight hundred fifty-eight thousand, seven hundred forty-nine".