49291817 has 2 divisors, whose sum is σ = 49291818. Its totient is φ = 49291816.

The previous prime is 49291787. The next prime is 49291831. The reversal of 49291817 is 71819294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39488656 + 9803161 = 6284^2 + 3131^2 .

It is a cyclic number.

It is not a de Polignac number, because 49291817 - 2¹⁰ = 49290793 is a prime.

It is a super-2 number, since 2×49291817² = 4859366446322978, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49291117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24645908 + 24645909.

It is an arithmetic number, because the mean of its divisors is an integer number (24645909).

Almost surely, 2^49291817 is an apocalyptic number.

It is an amenable number.

49291817 is a deficient number, since it is larger than the sum of its proper divisors (1).

49291817 is an equidigital number, since it uses as much as digits as its factorization.

49291817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 41.

The square root of 49291817 is about 7020.8131295456. The cubic root of 49291817 is about 366.6555606370.

The spelling of 49291817 in words is "forty-nine million, two hundred ninety-one thousand, eight hundred seventeen".