49728401 has 2 divisors, whose sum is σ = 49728402. Its totient is φ = 49728400.

The previous prime is 49728389. The next prime is 49728431. The reversal of 49728401 is 10482794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49688401 + 40000 = 7049^2 + 200^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49728401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (49728431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24864200 + 24864201.

It is an arithmetic number, because the mean of its divisors is an integer number (24864201).

Almost surely, 2^49728401 is an apocalyptic number.

It is an amenable number.

49728401 is a deficient number, since it is larger than the sum of its proper divisors (1).

49728401 is an equidigital number, since it uses as much as digits as its factorization.

49728401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 49728401 is about 7051.8367110987. The cubic root of 49728401 is about 367.7348855527.

The spelling of 49728401 in words is "forty-nine million, seven hundred twenty-eight thousand, four hundred one".