49271391 has 12 divisors (see below), whose sum is σ = 76644568. Its totient is φ = 30320784.

The previous prime is 49271371. The next prime is 49271393. The reversal of 49271391 is 19317294.

It is not a de Polignac number, because 49271391 - 2⁷ = 49271263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49271393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210445 + ... + 210678.

Almost surely, 2^49271391 is an apocalyptic number.

49271391 is a deficient number, since it is larger than the sum of its proper divisors (27373177).

49271391 is a wasteful number, since it uses less digits than its factorization.

49271391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421142 (or 421139 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 49271391 is about 7019.3583040047. The cubic root of 49271391 is about 366.6049075964.

It can be divided in two parts, 492713 and 91, that added together give a square (492804 = 702²).

The spelling of 49271391 in words is "forty-nine million, two hundred seventy-one thousand, three hundred ninety-one".