3970138493 has 8 divisors (see below), whose sum is σ = 3990856896. Its totient is φ = 3949452000.

The previous prime is 3970138489. The next prime is 3970138499. The reversal of 3970138493 is 3948310793.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3970138493 - 2² = 3970138489 is a prime.

It is a super-2 number, since 2×3970138493² = 31523999307200622098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3970138499) 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 in 7 ways as a sum of consecutive naturals, for example, 265568 + ... + 280118.

It is an arithmetic number, because the mean of its divisors is an integer number (498857112).

Almost surely, 2^3970138493 is an apocalyptic number.

It is an amenable number.

3970138493 is a deficient number, since it is larger than the sum of its proper divisors (20718403).

3970138493 is a wasteful number, since it uses less digits than its factorization.

3970138493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15955.

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 3970138493 is about 63009.0350108617. The cubic root of 3970138493 is about 1583.4409988270.

The spelling of 3970138493 in words is "three billion, nine hundred seventy million, one hundred thirty-eight thousand, four hundred ninety-three".