49743857 has 2 divisors, whose sum is σ = 49743858. Its totient is φ = 49743856.

The previous prime is 49743833. The next prime is 49743877. The reversal of 49743857 is 75834794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34093921 + 15649936 = 5839^2 + 3956^2 .

It is a cyclic number.

It is not a de Polignac number, because 49743857 - 2¹² = 49739761 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49743817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24871928 + 24871929.

It is an arithmetic number, because the mean of its divisors is an integer number (24871929).

Almost surely, 2^49743857 is an apocalyptic number.

It is an amenable number.

49743857 is a deficient number, since it is larger than the sum of its proper divisors (1).

49743857 is an equidigital number, since it uses as much as digits as its factorization.

49743857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 47.

The square root of 49743857 is about 7052.9325106653. The cubic root of 49743857 is about 367.7729799583.

The spelling of 49743857 in words is "forty-nine million, seven hundred forty-three thousand, eight hundred fifty-seven".