3939993370 has 8 divisors (see below), whose sum is σ = 7091988084. Its totient is φ = 1575997344.

The previous prime is 3939993361. The next prime is 3939993371. The reversal of 3939993370 is 733999393.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3620549241 + 319444129 = 60171^2 + 17873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3939993371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196999659 + ... + 196999678.

Almost surely, 2^3939993370 is an apocalyptic number.

3939993370 is a deficient number, since it is larger than the sum of its proper divisors (3151994714).

3939993370 is a wasteful number, since it uses less digits than its factorization.

3939993370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393999344.

The product of its (nonzero) digits is 3720087, while the sum is 55.

The square root of 3939993370 is about 62769.3664935373. The cubic root of 3939993370 is about 1579.4231417085.

The spelling of 3939993370 in words is "three billion, nine hundred thirty-nine million, nine hundred ninety-three thousand, three hundred seventy".