47857862 has 16 divisors (see below), whose sum is σ = 79804032. Its totient is φ = 21375360.

The previous prime is 47857861. The next prime is 47857889. The reversal of 47857862 is 26875874.

It is a super-2 number, since 2×47857862² = 4580749910422088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47857861) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28883 + ... + 30494.

It is an arithmetic number, because the mean of its divisors is an integer number (4987752).

Almost surely, 2^47857862 is an apocalyptic number.

47857862 is a deficient number, since it is larger than the sum of its proper divisors (31946170).

47857862 is a wasteful number, since it uses less digits than its factorization.

47857862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59423.

The product of its digits is 752640, while the sum is 47.

The square root of 47857862 is about 6917.9376984763. The cubic root of 47857862 is about 363.0650390536.

The spelling of 47857862 in words is "forty-seven million, eight hundred fifty-seven thousand, eight hundred sixty-two".