49887797 has 2 divisors, whose sum is σ = 49887798. Its totient is φ = 49887796.

The previous prime is 49887781. The next prime is 49887811. The reversal of 49887797 is 79778894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49758916 + 128881 = 7054^2 + 359^2 .

It is a cyclic number.

It is not a de Polignac number, because 49887797 - 2⁴ = 49887781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49887757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24943898 + 24943899.

It is an arithmetic number, because the mean of its divisors is an integer number (24943899).

Almost surely, 2^49887797 is an apocalyptic number.

It is an amenable number.

49887797 is a deficient number, since it is larger than the sum of its proper divisors (1).

49887797 is an equidigital number, since it uses as much as digits as its factorization.

49887797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7112448, while the sum is 59.

The square root of 49887797 is about 7063.1294055822. The cubic root of 49887797 is about 368.1273705484.

The spelling of 49887797 in words is "forty-nine million, eight hundred eighty-seven thousand, seven hundred ninety-seven".