3712172477 has 4 divisors (see below), whose sum is σ = 3997724220. Its totient is φ = 3426620736.

The previous prime is 3712172473. The next prime is 3712172537. The reversal of 3712172477 is 7742712173.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1155252121 + 2556920356 = 33989^2 + 50566^2 .

It is a cyclic number.

It is not a de Polignac number, because 3712172477 - 2² = 3712172473 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 (3712172473) 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 3 ways as a sum of consecutive naturals, for example, 142775852 + ... + 142775877.

It is an arithmetic number, because the mean of its divisors is an integer number (999431055).

Almost surely, 2^3712172477 is an apocalyptic number.

It is an amenable number.

3712172477 is a deficient number, since it is larger than the sum of its proper divisors (285551743).

3712172477 is a wasteful number, since it uses less digits than its factorization.

3712172477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285551742.

The product of its digits is 115248, while the sum is 41.

The square root of 3712172477 is about 60927.6002891957. The cubic root of 3712172477 is about 1548.3746371006.

The spelling of 3712172477 in words is "three billion, seven hundred twelve million, one hundred seventy-two thousand, four hundred seventy-seven".