47434457 has 4 divisors (see below), whose sum is σ = 54210816. Its totient is φ = 40658100.

The previous prime is 47434447. The next prime is 47434483. The reversal of 47434457 is 75443474.

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.

It is not a de Polignac number, because 47434457 - 2⁸ = 47434201 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 47434457.

It is not an unprimeable number, because it can be changed into a prime (47434447) 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, 3388169 + ... + 3388182.

It is an arithmetic number, because the mean of its divisors is an integer number (13552704).

Almost surely, 2^47434457 is an apocalyptic number.

It is an amenable number.

47434457 is a deficient number, since it is larger than the sum of its proper divisors (6776359).

47434457 is an equidigital number, since it uses as much as digits as its factorization.

47434457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776358.

The product of its digits is 188160, while the sum is 38.

The square root of 47434457 is about 6887.2677456303. The cubic root of 47434457 is about 361.9911706891.

The spelling of 47434457 in words is "forty-seven million, four hundred thirty-four thousand, four hundred fifty-seven".