47854457 has 4 divisors (see below), whose sum is σ = 54690816. Its totient is φ = 41018100.

The previous prime is 47854453. The next prime is 47854481. The reversal of 47854457 is 75445874.

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 a cyclic number.

It is not a de Polignac number, because 47854457 - 2² = 47854453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47854453) 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, 3418169 + ... + 3418182.

It is an arithmetic number, because the mean of its divisors is an integer number (13672704).

Almost surely, 2^47854457 is an apocalyptic number.

It is an amenable number.

47854457 is a deficient number, since it is larger than the sum of its proper divisors (6836359).

47854457 is an equidigital number, since it uses as much as digits as its factorization.

47854457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6836358.

The product of its digits is 627200, while the sum is 44.

The square root of 47854457 is about 6917.6915947446. The cubic root of 47854457 is about 363.0564283766.

The spelling of 47854457 in words is "forty-seven million, eight hundred fifty-four thousand, four hundred fifty-seven".