3971379455 has 4 divisors (see below), whose sum is σ = 4765655352. Its totient is φ = 3177103560.

The previous prime is 3971379439. The next prime is 3971379457. The reversal of 3971379455 is 5549731793.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3971379455 - 2⁴ = 3971379439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3971379397 and 3971379406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971379457) 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, 397137941 + ... + 397137950.

It is an arithmetic number, because the mean of its divisors is an integer number (1191413838).

Almost surely, 2^3971379455 is an apocalyptic number.

3971379455 is a deficient number, since it is larger than the sum of its proper divisors (794275897).

3971379455 is an equidigital number, since it uses as much as digits as its factorization.

3971379455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794275896.

The product of its digits is 3572100, while the sum is 53.

The square root of 3971379455 is about 63018.8817339692. The cubic root of 3971379455 is about 1583.6059624601.

The spelling of 3971379455 in words is "three billion, nine hundred seventy-one million, three hundred seventy-nine thousand, four hundred fifty-five".