3123861447 has 16 divisors (see below), whose sum is σ = 4761116672. Its totient is φ = 1784708640.

The previous prime is 3123861409. The next prime is 3123861457. The reversal of 3123861447 is 7441683213.

It is not a de Polignac number, because 3123861447 - 2⁷ = 3123861319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123861407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123258 + ... + 146424.

It is an arithmetic number, because the mean of its divisors is an integer number (297569792).

Almost surely, 2^3123861447 is an apocalyptic number.

3123861447 is a deficient number, since it is larger than the sum of its proper divisors (1637255225).

3123861447 is a wasteful number, since it uses less digits than its factorization.

3123861447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29598.

The product of its digits is 96768, while the sum is 39.

The square root of 3123861447 is about 55891.5149821509. The cubic root of 3123861447 is about 1461.8312929165.

The spelling of 3123861447 in words is "three billion, one hundred twenty-three million, eight hundred sixty-one thousand, four hundred forty-seven".