57047946 has 16 divisors (see below), whose sum is σ = 114199104. Its totient is φ = 18998784.

The previous prime is 57047941. The next prime is 57047957. The reversal of 57047946 is 64974075.

It is a junction number, because it is equal to n+sod(n) for n = 57047898 and 57047907.

It is not an unprimeable number, because it can be changed into a prime (57047941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4170 + ... + 11466.

It is an arithmetic number, because the mean of its divisors is an integer number (7137444).

Almost surely, 2^57047946 is an apocalyptic number.

57047946 is an abundant number, since it is smaller than the sum of its proper divisors (57151158).

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

57047946 is a wasteful number, since it uses less digits than its factorization.

57047946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8605.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 57047946 is about 7553.0090692386. The cubic root of 57047946 is about 384.9579894566.

It can be divided in two parts, 570 and 47946, that added together give a triangular number (48516 = T₃₁₁).

The spelling of 57047946 in words is "fifty-seven million, forty-seven thousand, nine hundred forty-six".