49998623 has 2 divisors, whose sum is σ = 49998624. Its totient is φ = 49998622.

The previous prime is 49998617. The next prime is 49998653. The reversal of 49998623 is 32689994.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49998623 is a prime.

It is a super-2 number, since 2×49998623² = 4999724603792258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49998653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999311 + 24999312.

It is an arithmetic number, because the mean of its divisors is an integer number (24999312).

Almost surely, 2^49998623 is an apocalyptic number.

49998623 is a deficient number, since it is larger than the sum of its proper divisors (1).

49998623 is an equidigital number, since it uses as much as digits as its factorization.

49998623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 50.

The square root of 49998623 is about 7070.9704425913. The cubic root of 49998623 is about 368.3997678921.

The spelling of 49998623 in words is "forty-nine million, nine hundred ninety-eight thousand, six hundred twenty-three".