49691923 has 2 divisors, whose sum is σ = 49691924. Its totient is φ = 49691922.

The previous prime is 49691879. The next prime is 49691927. The reversal of 49691923 is 32919694.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49691923 - 2¹⁷ = 49560851 is a prime.

It is a super-2 number, since 2×49691923² = 4938574422875858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 49691923.

It is not a weakly prime, because it can be changed into another prime (49691927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24845961 + 24845962.

It is an arithmetic number, because the mean of its divisors is an integer number (24845962).

Almost surely, 2^49691923 is an apocalyptic number.

49691923 is a deficient number, since it is larger than the sum of its proper divisors (1).

49691923 is an equidigital number, since it uses as much as digits as its factorization.

49691923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 43.

The square root of 49691923 is about 7049.2498182431. The cubic root of 49691923 is about 367.6449469113.

The spelling of 49691923 in words is "forty-nine million, six hundred ninety-one thousand, nine hundred twenty-three".