47872866 has 16 divisors (see below), whose sum is σ = 98834688. Its totient is φ = 15442800.

The previous prime is 47872859. The next prime is 47872873. The reversal of 47872866 is 66827874.

It is an interprime number because it is at equal distance from previous prime (47872859) and next prime (47872873).

It is a super-2 number, since 2×47872866² = 4583622598107912, which contains 22 as substring.

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, 128505 + ... + 128876.

It is an arithmetic number, because the mean of its divisors is an integer number (6177168).

Almost surely, 2^47872866 is an apocalyptic number.

47872866 is an abundant number, since it is smaller than the sum of its proper divisors (50961822).

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

47872866 is a wasteful number, since it uses less digits than its factorization.

47872866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257417.

The product of its digits is 903168, while the sum is 48.

The square root of 47872866 is about 6919.0220407222. The cubic root of 47872866 is about 363.1029768026.

The spelling of 47872866 in words is "forty-seven million, eight hundred seventy-two thousand, eight hundred sixty-six".