4157893 has 2 divisors, whose sum is σ = 4157894. Its totient is φ = 4157892.

The previous prime is 4157891. The next prime is 4157897. The reversal of 4157893 is 3987514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2259009 + 1898884 = 1503^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 4157893 - 2¹ = 4157891 is a prime.

Together with 4157891, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4157891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2078946 + 2078947.

It is an arithmetic number, because the mean of its divisors is an integer number (2078947).

Almost surely, 2^4157893 is an apocalyptic number.

It is an amenable number.

4157893 is a deficient number, since it is larger than the sum of its proper divisors (1).

4157893 is an equidigital number, since it uses as much as digits as its factorization.

4157893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 4157893 is about 2039.0912191464. The cubic root of 4157893 is about 160.8018729723.

It can be divided in two parts, 4157 and 893, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 4157893 in words is "four million, one hundred fifty-seven thousand, eight hundred ninety-three".