49239877 has 2 divisors, whose sum is σ = 49239878. Its totient is φ = 49239876.

The previous prime is 49239851. The next prime is 49239901. The reversal of 49239877 is 77893294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49196196 + 43681 = 7014^2 + 209^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49239877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49239877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49239577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24619938 + 24619939.

It is an arithmetic number, because the mean of its divisors is an integer number (24619939).

Almost surely, 2^49239877 is an apocalyptic number.

It is an amenable number.

49239877 is a deficient number, since it is larger than the sum of its proper divisors (1).

49239877 is an equidigital number, since it uses as much as digits as its factorization.

49239877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 49.

The square root of 49239877 is about 7017.1131528571. The cubic root of 49239877 is about 366.5267307150.

The spelling of 49239877 in words is "forty-nine million, two hundred thirty-nine thousand, eight hundred seventy-seven".