47951847 has 12 divisors (see below), whose sum is σ = 69358120. Its totient is φ = 31924368.

The previous prime is 47951821. The next prime is 47951851. The reversal of 47951847 is 74815974.

It is a happy number.

It is not a de Polignac number, because 47951847 - 2¹⁸ = 47689703 is a prime.

It is a super-2 number, since 2×47951847² = 4598759261422818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47951867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4248 + ... + 10674.

Almost surely, 2^47951847 is an apocalyptic number.

47951847 is a deficient number, since it is larger than the sum of its proper divisors (21406273).

47951847 is a wasteful number, since it uses less digits than its factorization.

47951847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7262 (or 7259 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 47951847 is about 6924.7272148439. The cubic root of 47951847 is about 363.3025503945.

It can be divided in two parts, 479 and 51847, that added together give a triangular number (52326 = T₃₂₃).

The spelling of 47951847 in words is "forty-seven million, nine hundred fifty-one thousand, eight hundred forty-seven".