49311691 has 16 divisors (see below), whose sum is σ = 58141440. Its totient is φ = 41231520.

The previous prime is 49311673. The next prime is 49311697. The reversal of 49311691 is 19611394.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-49311691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49311697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59506 + ... + 60328.

It is an arithmetic number, because the mean of its divisors is an integer number (3633840).

Almost surely, 2^49311691 is an apocalyptic number.

49311691 is a deficient number, since it is larger than the sum of its proper divisors (8829749).

49311691 is a wasteful number, since it uses less digits than its factorization.

49311691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its digits is 5832, while the sum is 34.

The square root of 49311691 is about 7022.2283500325. The cubic root of 49311691 is about 366.7048313810.

The spelling of 49311691 in words is "forty-nine million, three hundred eleven thousand, six hundred ninety-one".