19748061 has 6 divisors (see below), whose sum is σ = 28524990. Its totient is φ = 13165368.

The previous prime is 19748039. The next prime is 19748077. The reversal of 19748061 is 16084791.

It can be written as a sum of positive squares in only one way, i.e., 12425625 + 7322436 = 3525^2 + 2706^2 .

It is not a de Polignac number, because 19748061 - 2⁶ = 19747997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19748021) 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, 1097106 + ... + 1097123.

It is an arithmetic number, because the mean of its divisors is an integer number (4754165).

Almost surely, 2^19748061 is an apocalyptic number.

It is an amenable number.

19748061 is a deficient number, since it is larger than the sum of its proper divisors (8776929).

19748061 is a wasteful number, since it uses less digits than its factorization.

19748061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194235 (or 2194232 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 19748061 is about 4443.8790487591. The cubic root of 19748061 is about 270.2971625343.

The spelling of 19748061 in words is "nineteen million, seven hundred forty-eight thousand, sixty-one".