49017791 has 2 divisors, whose sum is σ = 49017792. Its totient is φ = 49017790.

The previous prime is 49017767. The next prime is 49017797. The reversal of 49017791 is 19771094.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49017791 - 2¹⁸ = 48755647 is a prime.

It is a super-3 number, since 3×49017791³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49017797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24508895 + 24508896.

It is an arithmetic number, because the mean of its divisors is an integer number (24508896).

Almost surely, 2^49017791 is an apocalyptic number.

49017791 is a deficient number, since it is larger than the sum of its proper divisors (1).

49017791 is an equidigital number, since it uses as much as digits as its factorization.

49017791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 38.

The square root of 49017791 is about 7001.2706703855. The cubic root of 49017791 is about 365.9748531998.

It can be divided in two parts, 490 and 17791, that added together give a palindrome (18281).

The spelling of 49017791 in words is "forty-nine million, seventeen thousand, seven hundred ninety-one".