49279311 has 24 divisors (see below), whose sum is σ = 75950784. Its totient is φ = 30681600.

The previous prime is 49279309. The next prime is 49279319. The reversal of 49279311 is 11397294.

It is not a de Polignac number, because 49279311 - 2¹ = 49279309 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49279319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19786 + ... + 22136.

It is an arithmetic number, because the mean of its divisors is an integer number (3164616).

Almost surely, 2^49279311 is an apocalyptic number.

49279311 is a deficient number, since it is larger than the sum of its proper divisors (26671473).

49279311 is a wasteful number, since it uses less digits than its factorization.

49279311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511 (or 2508 counting only the distinct ones).

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

The square root of 49279311 is about 7019.9224354689. The cubic root of 49279311 is about 366.6245495242.

It can be divided in two parts, 492793 and 11, that added together give a square (492804 = 702²).

The spelling of 49279311 in words is "forty-nine million, two hundred seventy-nine thousand, three hundred eleven".