57287046 has 8 divisors (see below), whose sum is σ = 114574104. Its totient is φ = 19095680.

The previous prime is 57287023. The next prime is 57287107. The reversal of 57287046 is 64078275.

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

57287046 is an admirable number.

It is a super-2 number, since 2×57287046² = 6563611278812232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57286995 and 57287013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4773915 + ... + 4773926.

It is an arithmetic number, because the mean of its divisors is an integer number (14321763).

Almost surely, 2^57287046 is an apocalyptic number.

57287046 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57287046 is a wasteful number, since it uses less digits than its factorization.

57287046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9547846.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 57287046 is about 7568.8206478949. The cubic root of 57287046 is about 385.4950532723.

The spelling of 57287046 in words is "fifty-seven million, two hundred eighty-seven thousand, forty-six".