47657345 has 4 divisors (see below), whose sum is σ = 57188820. Its totient is φ = 38125872.

The previous prime is 47657299. The next prime is 47657347. The reversal of 47657345 is 54375674.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20367169 + 27290176 = 4513^2 + 5224^2 .

It is a cyclic number.

It is not a de Polignac number, because 47657345 - 2¹⁶ = 47591809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47657347) 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, 4765730 + ... + 4765739.

It is an arithmetic number, because the mean of its divisors is an integer number (14297205).

Almost surely, 2^47657345 is an apocalyptic number.

It is an amenable number.

47657345 is a deficient number, since it is larger than the sum of its proper divisors (9531475).

47657345 is an equidigital number, since it uses as much as digits as its factorization.

47657345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9531474.

The product of its digits is 352800, while the sum is 41.

The square root of 47657345 is about 6903.4299446000. The cubic root of 47657345 is about 362.5572672110.

The spelling of 47657345 in words is "forty-seven million, six hundred fifty-seven thousand, three hundred forty-five".