49782991 has 2 divisors, whose sum is σ = 49782992. Its totient is φ = 49782990.

The previous prime is 49782913. The next prime is 49783009. The reversal of 49782991 is 19928794.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49782991 - 2⁹ = 49782479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49782091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24891495 + 24891496.

It is an arithmetic number, because the mean of its divisors is an integer number (24891496).

Almost surely, 2^49782991 is an apocalyptic number.

49782991 is a deficient number, since it is larger than the sum of its proper divisors (1).

49782991 is an equidigital number, since it uses as much as digits as its factorization.

49782991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 49.

The square root of 49782991 is about 7055.7062722310. The cubic root of 49782991 is about 367.8693982640.

The spelling of 49782991 in words is "forty-nine million, seven hundred eighty-two thousand, nine hundred ninety-one".