49728313 has 2 divisors, whose sum is σ = 49728314. Its totient is φ = 49728312.

The previous prime is 49728299. The next prime is 49728353. The reversal of 49728313 is 31382794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42094144 + 7634169 = 6488^2 + 2763^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49728313 is a prime.

It is a super-2 number, since 2×49728313² = 4945810227651938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49728353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24864156 + 24864157.

It is an arithmetic number, because the mean of its divisors is an integer number (24864157).

Almost surely, 2^49728313 is an apocalyptic number.

It is an amenable number.

49728313 is a deficient number, since it is larger than the sum of its proper divisors (1).

49728313 is an equidigital number, since it uses as much as digits as its factorization.

49728313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 37.

The square root of 49728313 is about 7051.8304715868. The cubic root of 49728313 is about 367.7346686365.

The spelling of 49728313 in words is "forty-nine million, seven hundred twenty-eight thousand, three hundred thirteen".