49263791 has 4 divisors (see below), whose sum is σ = 49438152. Its totient is φ = 49089432.

The previous prime is 49263787. The next prime is 49263803. The reversal of 49263791 is 19736294.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19736294 = 2 ⋅9868147.

It is a cyclic number.

It is not a de Polignac number, because 49263791 - 2² = 49263787 is a prime.

It is a super-2 number, since 2×49263791² = 4853842207383362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49263091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86756 + ... + 87321.

It is an arithmetic number, because the mean of its divisors is an integer number (12359538).

Almost surely, 2^49263791 is an apocalyptic number.

49263791 is a deficient number, since it is larger than the sum of its proper divisors (174361).

49263791 is a wasteful number, since it uses less digits than its factorization.

49263791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174360.

The product of its digits is 81648, while the sum is 41.

The square root of 49263791 is about 7018.8169231004. The cubic root of 49263791 is about 366.5860573028.

The spelling of 49263791 in words is "forty-nine million, two hundred sixty-three thousand, seven hundred ninety-one".