49031947 has 2 divisors, whose sum is σ = 49031948. Its totient is φ = 49031946.

The previous prime is 49031923. The next prime is 49031959. The reversal of 49031947 is 74913094.

49031947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49031947 is a prime.

It is a super-2 number, since 2×49031947² = 4808263653221618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49035947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24515973 + 24515974.

It is an arithmetic number, because the mean of its divisors is an integer number (24515974).

Almost surely, 2^49031947 is an apocalyptic number.

49031947 is a deficient number, since it is larger than the sum of its proper divisors (1).

49031947 is an equidigital number, since it uses as much as digits as its factorization.

49031947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 49031947 is about 7002.2815567499. The cubic root of 49031947 is about 366.0100801468.

The spelling of 49031947 in words is "forty-nine million, thirty-one thousand, nine hundred forty-seven".