49636997 has 2 divisors, whose sum is σ = 49636998. Its totient is φ = 49636996.

The previous prime is 49636973. The next prime is 49636999. The reversal of 49636997 is 79963694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44502241 + 5134756 = 6671^2 + 2266^2 .

49636997 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 49636997 - 2⁶ = 49636933 is a prime.

Together with 49636999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49636999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24818498 + 24818499.

It is an arithmetic number, because the mean of its divisors is an integer number (24818499).

Almost surely, 2^49636997 is an apocalyptic number.

It is an amenable number.

49636997 is a deficient number, since it is larger than the sum of its proper divisors (1).

49636997 is an equidigital number, since it uses as much as digits as its factorization.

49636997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 53.

The square root of 49636997 is about 7045.3528655419. The cubic root of 49636997 is about 367.5094405769.

The spelling of 49636997 in words is "forty-nine million, six hundred thirty-six thousand, nine hundred ninety-seven".