47471739 has 24 divisors (see below), whose sum is σ = 75207168. Its totient is φ = 26545680.

The previous prime is 47471737. The next prime is 47471741. The reversal of 47471739 is 93717474.

It is an interprime number because it is at equal distance from previous prime (47471737) and next prime (47471741).

It is not a de Polignac number, because 47471739 - 2¹ = 47471737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47471739.

It is not an unprimeable number, because it can be changed into a prime (47471731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3474 + ... + 10344.

It is an arithmetic number, because the mean of its divisors is an integer number (3133632).

Almost surely, 2^47471739 is an apocalyptic number.

47471739 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

47471739 is a deficient number, since it is larger than the sum of its proper divisors (27735429).

47471739 is a wasteful number, since it uses less digits than its factorization.

47471739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6935 (or 6928 counting only the distinct ones).

The product of its digits is 148176, while the sum is 42.

The square root of 47471739 is about 6889.9738025627. The cubic root of 47471739 is about 362.0859837671.

The spelling of 47471739 in words is "forty-seven million, four hundred seventy-one thousand, seven hundred thirty-nine".