49479491 has 2 divisors, whose sum is σ = 49479492. Its totient is φ = 49479490.

The previous prime is 49479487. The next prime is 49479511. The reversal of 49479491 is 19497494.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49479491 - 2² = 49479487 is a prime.

It is not a weakly prime, because it can be changed into another prime (49479091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24739745 + 24739746.

It is an arithmetic number, because the mean of its divisors is an integer number (24739746).

Almost surely, 2^49479491 is an apocalyptic number.

49479491 is a deficient number, since it is larger than the sum of its proper divisors (1).

49479491 is an equidigital number, since it uses as much as digits as its factorization.

49479491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The square root of 49479491 is about 7034.1659775698. The cubic root of 49479491 is about 367.1203069359.

The spelling of 49479491 in words is "forty-nine million, four hundred seventy-nine thousand, four hundred ninety-one".