47434861 has 4 divisors (see below), whose sum is σ = 48142912. Its totient is φ = 46726812.

The previous prime is 47434853. The next prime is 47434897. The reversal of 47434861 is 16843474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16843474 = 2 ⋅8421737.

It is a cyclic number.

It is not a de Polignac number, because 47434861 - 2³ = 47434853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47434861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47434561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353925 + ... + 354058.

It is an arithmetic number, because the mean of its divisors is an integer number (12035728).

Almost surely, 2^47434861 is an apocalyptic number.

It is an amenable number.

47434861 is a deficient number, since it is larger than the sum of its proper divisors (708051).

47434861 is an equidigital number, since it uses as much as digits as its factorization.

47434861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708050.

The product of its digits is 64512, while the sum is 37.

The square root of 47434861 is about 6887.2970750506. The cubic root of 47434861 is about 361.9921983810.

It can be divided in two parts, 4743 and 4861, that added together give a square (9604 = 98²).

The spelling of 47434861 in words is "forty-seven million, four hundred thirty-four thousand, eight hundred sixty-one".