49879901 has 2 divisors, whose sum is σ = 49879902. Its totient is φ = 49879900.

The previous prime is 49879897. The next prime is 49879927. The reversal of 49879901 is 10997894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48636676 + 1243225 = 6974^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 49879901 - 2² = 49879897 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49879301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24939950 + 24939951.

It is an arithmetic number, because the mean of its divisors is an integer number (24939951).

Almost surely, 2^49879901 is an apocalyptic number.

It is an amenable number.

49879901 is a deficient number, since it is larger than the sum of its proper divisors (1).

49879901 is an equidigital number, since it uses as much as digits as its factorization.

49879901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 49879901 is about 7062.5704244276. The cubic root of 49879901 is about 368.1079477152.

The spelling of 49879901 in words is "forty-nine million, eight hundred seventy-nine thousand, nine hundred one".