49846639 has 2 divisors, whose sum is σ = 49846640. Its totient is φ = 49846638.

The previous prime is 49846619. The next prime is 49846697. The reversal of 49846639 is 93664894.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49846639 - 2¹⁵ = 49813871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49846592 and 49846601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49846619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24923319 + 24923320.

It is an arithmetic number, because the mean of its divisors is an integer number (24923320).

Almost surely, 2^49846639 is an apocalyptic number.

49846639 is a deficient number, since it is larger than the sum of its proper divisors (1).

49846639 is an equidigital number, since it uses as much as digits as its factorization.

49846639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 49.

The square root of 49846639 is about 7060.2152233484. The cubic root of 49846639 is about 368.0261062726.

The spelling of 49846639 in words is "forty-nine million, eight hundred forty-six thousand, six hundred thirty-nine".