3939720495 has 8 divisors (see below), whose sum is σ = 6303552816. Its totient is φ = 2101184256.

The previous prime is 3939720493. The next prime is 3939720503. The reversal of 3939720495 is 5940279393.

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

It is not a de Polignac number, because 3939720495 - 2¹ = 3939720493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939720493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131324002 + ... + 131324031.

It is an arithmetic number, because the mean of its divisors is an integer number (787944102).

Almost surely, 2^3939720495 is an apocalyptic number.

3939720495 is a deficient number, since it is larger than the sum of its proper divisors (2363832321).

3939720495 is a wasteful number, since it uses less digits than its factorization.

3939720495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262648041.

The product of its (nonzero) digits is 1837080, while the sum is 51.

The square root of 3939720495 is about 62767.1928239586. The cubic root of 3939720495 is about 1579.3866784458.

The spelling of 3939720495 in words is "three billion, nine hundred thirty-nine million, seven hundred twenty thousand, four hundred ninety-five".