47720343 has 64 divisors (see below), whose sum is σ = 80110080. Its totient is φ = 25090560.

The previous prime is 47720327. The next prime is 47720347. The reversal of 47720343 is 34302774.

It is not a de Polignac number, because 47720343 - 2⁴ = 47720327 is a prime.

It is a super-2 number, since 2×47720343² = 4554462272075298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47720343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47720347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1289721 + ... + 1289757.

It is an arithmetic number, because the mean of its divisors is an integer number (1251720).

Almost surely, 2^47720343 is an apocalyptic number.

47720343 is a deficient number, since it is larger than the sum of its proper divisors (32389737).

47720343 is a wasteful number, since it uses less digits than its factorization.

47720343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 47720343 is about 6907.9912420327. The cubic root of 47720343 is about 362.7169510674.

Subtracting from 47720343 its reverse (34302774), we obtain a square (13417569 = 3663²).

The spelling of 47720343 in words is "forty-seven million, seven hundred twenty thousand, three hundred forty-three".