47294557 has 2 divisors, whose sum is σ = 47294558. Its totient is φ = 47294556.

The previous prime is 47294551. The next prime is 47294609. The reversal of 47294557 is 75549274.

47294557 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44542276 + 2752281 = 6674^2 + 1659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47294557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47294551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23647278 + 23647279.

It is an arithmetic number, because the mean of its divisors is an integer number (23647279).

Almost surely, 2^47294557 is an apocalyptic number.

It is an amenable number.

47294557 is a deficient number, since it is larger than the sum of its proper divisors (1).

47294557 is an equidigital number, since it uses as much as digits as its factorization.

47294557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 43.

The square root of 47294557 is about 6877.1038235583. The cubic root of 47294557 is about 361.6349427697.

The spelling of 47294557 in words is "forty-seven million, two hundred ninety-four thousand, five hundred fifty-seven".