49665923 has 2 divisors, whose sum is σ = 49665924. Its totient is φ = 49665922.

The previous prime is 49665919. The next prime is 49665949. The reversal of 49665923 is 32956694.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49665923 - 2² = 49665919 is a prime.

It is a super-3 number, since 3×49665923³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (49665953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24832961 + 24832962.

It is an arithmetic number, because the mean of its divisors is an integer number (24832962).

Almost surely, 2^49665923 is an apocalyptic number.

49665923 is a deficient number, since it is larger than the sum of its proper divisors (1).

49665923 is an equidigital number, since it uses as much as digits as its factorization.

49665923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 44.

The square root of 49665923 is about 7047.4054090850. The cubic root of 49665923 is about 367.5808155216.

The spelling of 49665923 in words is "forty-nine million, six hundred sixty-five thousand, nine hundred twenty-three".