49311689 has 6 divisors (see below), whose sum is σ = 57362634. Its totient is φ = 42267120.

The previous prime is 49311673. The next prime is 49311697. The reversal of 49311689 is 98611394.

It can be written as a sum of positive squares in only one way, i.e., 34164025 + 15147664 = 5845^2 + 3892^2 .

It is not a de Polignac number, because 49311689 - 2⁴ = 49311673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49311389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503132 + ... + 503229.

It is an arithmetic number, because the mean of its divisors is an integer number (9560439).

Almost surely, 2^49311689 is an apocalyptic number.

49311689 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

49311689 is a deficient number, since it is larger than the sum of its proper divisors (8050945).

49311689 is a wasteful number, since it uses less digits than its factorization.

49311689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006375 (or 1006368 counting only the distinct ones).

The product of its digits is 46656, while the sum is 41.

The square root of 49311689 is about 7022.2282076275. The cubic root of 49311689 is about 366.7048264234.

The spelling of 49311689 in words is "forty-nine million, three hundred eleven thousand, six hundred eighty-nine".