48999779 has 2 divisors, whose sum is σ = 48999780. Its totient is φ = 48999778.

The previous prime is 48999757. The next prime is 48999799. The reversal of 48999779 is 97799984.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48999779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (48999739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24499889 + 24499890.

It is an arithmetic number, because the mean of its divisors is an integer number (24499890).

Almost surely, 2^48999779 is an apocalyptic number.

48999779 is a deficient number, since it is larger than the sum of its proper divisors (1).

48999779 is an equidigital number, since it uses as much as digits as its factorization.

48999779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10287648, while the sum is 62.

The square root of 48999779 is about 6999.9842142679. The cubic root of 48999779 is about 365.9300208610.

The spelling of 48999779 in words is "forty-eight million, nine hundred ninety-nine thousand, seven hundred seventy-nine".