49191943 has 2 divisors, whose sum is σ = 49191944. Its totient is φ = 49191942.

The previous prime is 49191929. The next prime is 49191953. The reversal of 49191943 is 34919194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49191943 - 2⁵ = 49191911 is a prime.

It is a super-2 number, since 2×49191943² = 4839694512230498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49191896 and 49191905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49191953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24595971 + 24595972.

It is an arithmetic number, because the mean of its divisors is an integer number (24595972).

Almost surely, 2^49191943 is an apocalyptic number.

49191943 is a deficient number, since it is larger than the sum of its proper divisors (1).

49191943 is an equidigital number, since it uses as much as digits as its factorization.

49191943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 40.

The square root of 49191943 is about 7013.6968140917. The cubic root of 49191943 is about 366.4077567078.

The spelling of 49191943 in words is "forty-nine million, one hundred ninety-one thousand, nine hundred forty-three".