49478069 has 2 divisors, whose sum is σ = 49478070. Its totient is φ = 49478068.

The previous prime is 49478063. The next prime is 49478087. The reversal of 49478069 is 96087494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32913169 + 16564900 = 5737^2 + 4070^2 .

It is a cyclic number.

It is not a de Polignac number, because 49478069 - 2⁴ = 49478053 is a prime.

It is a super-2 number, since 2×49478069² = 4896158623937522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49478063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24739034 + 24739035.

It is an arithmetic number, because the mean of its divisors is an integer number (24739035).

Almost surely, 2^49478069 is an apocalyptic number.

It is an amenable number.

49478069 is a deficient number, since it is larger than the sum of its proper divisors (1).

49478069 is an equidigital number, since it uses as much as digits as its factorization.

49478069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 49478069 is about 7034.0648987623. The cubic root of 49478069 is about 367.1167899900.

The spelling of 49478069 in words is "forty-nine million, four hundred seventy-eight thousand, sixty-nine".