3937449213 has 6 divisors (see below), whose sum is σ = 5687426654. Its totient is φ = 2624966136.

The previous prime is 3937449209. The next prime is 3937449319. The reversal of 3937449213 is 3129447393.

3937449213 is a `hidden beast` number, since 3 + 93 + 74 + 492 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3909125529 + 28323684 = 62523^2 + 5322^2 .

It is not a de Polignac number, because 3937449213 - 2² = 3937449209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3937449613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218747170 + ... + 218747187.

Almost surely, 2^3937449213 is an apocalyptic number.

It is an amenable number.

3937449213 is a deficient number, since it is larger than the sum of its proper divisors (1749977441).

3937449213 is a wasteful number, since it uses less digits than its factorization.

3937449213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437494363 (or 437494360 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 3937449213 is about 62749.0973082482. The cubic root of 3937449213 is about 1579.0831102007.

The spelling of 3937449213 in words is "three billion, nine hundred thirty-seven million, four hundred forty-nine thousand, two hundred thirteen".