49478491 has 2 divisors, whose sum is σ = 49478492. Its totient is φ = 49478490.

The previous prime is 49478467. The next prime is 49478549. The reversal of 49478491 is 19487494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49478491 - 2⁵ = 49478459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49478441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24739245 + 24739246.

It is an arithmetic number, because the mean of its divisors is an integer number (24739246).

Almost surely, 2^49478491 is an apocalyptic number.

49478491 is a deficient number, since it is larger than the sum of its proper divisors (1).

49478491 is an equidigital number, since it uses as much as digits as its factorization.

49478491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 49478491 is about 7034.0948955783. The cubic root of 49478491 is about 367.1178337039.

The spelling of 49478491 in words is "forty-nine million, four hundred seventy-eight thousand, four hundred ninety-one".