49246991 has 2 divisors, whose sum is σ = 49246992. Its totient is φ = 49246990.

The previous prime is 49246987. The next prime is 49247039. The reversal of 49246991 is 19964294.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49246991 - 2² = 49246987 is a prime.

It is a super-2 number, since 2×49246991² = 4850532245108162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49246921) 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, 24623495 + 24623496.

It is an arithmetic number, because the mean of its divisors is an integer number (24623496).

Almost surely, 2^49246991 is an apocalyptic number.

49246991 is a deficient number, since it is larger than the sum of its proper divisors (1).

49246991 is an equidigital number, since it uses as much as digits as its factorization.

49246991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 44.

The square root of 49246991 is about 7017.6200381611. The cubic root of 49246991 is about 366.5443813521.

The spelling of 49246991 in words is "forty-nine million, two hundred forty-six thousand, nine hundred ninety-one".