3961465405 has 8 divisors (see below), whose sum is σ = 4760009784. Its totient is φ = 3165004800.

The previous prime is 3961465399. The next prime is 3961465427. The reversal of 3961465405 is 5045641693.

It can be written as a sum of positive squares in 4 ways, for example, as 268107876 + 3693357529 = 16374^2 + 60773^2 .

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

It is not a de Polignac number, because 3961465405 - 2³ = 3961465397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 516756 + ... + 524365.

It is an arithmetic number, because the mean of its divisors is an integer number (595001223).

Almost surely, 2^3961465405 is an apocalyptic number.

It is an amenable number.

3961465405 is a deficient number, since it is larger than the sum of its proper divisors (798544379).

3961465405 is a wasteful number, since it uses less digits than its factorization.

3961465405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041887.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 3961465405 is about 62940.1732202891. The cubic root of 3961465405 is about 1582.2871066037.

The spelling of 3961465405 in words is "three billion, nine hundred sixty-one million, four hundred sixty-five thousand, four hundred five".