49993969 has 2 divisors, whose sum is σ = 49993970. Its totient is φ = 49993968.

The previous prime is 49993967. The next prime is 49993987. The reversal of 49993969 is 96939994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47059600 + 2934369 = 6860^2 + 1713^2 .

It is a cyclic number.

It is not a de Polignac number, because 49993969 - 2¹ = 49993967 is a prime.

It is a super-2 number, since 2×49993969² = 4998793872745922, which contains 22 as substring.

Together with 49993967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (49993961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24996984 + 24996985.

It is an arithmetic number, because the mean of its divisors is an integer number (24996985).

Almost surely, 2^49993969 is an apocalyptic number.

It is an amenable number.

49993969 is a deficient number, since it is larger than the sum of its proper divisors (1).

49993969 is an equidigital number, since it uses as much as digits as its factorization.

49993969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4251528, while the sum is 58.

The square root of 49993969 is about 7070.6413429052. The cubic root of 49993969 is about 368.3883370058.

The spelling of 49993969 in words is "forty-nine million, nine hundred ninety-three thousand, nine hundred sixty-nine".