3992723461 has 16 divisors (see below), whose sum is σ = 4280647680. Its totient is φ = 3717537840.

The previous prime is 3992723453. The next prime is 3992723491. The reversal of 3992723461 is 1643272993.

It is a cyclic number.

It is not a de Polignac number, because 3992723461 - 2³ = 3992723453 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 (3992723491) 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, 62740 + ... + 109186.

It is an arithmetic number, because the mean of its divisors is an integer number (267540480).

Almost surely, 2^3992723461 is an apocalyptic number.

3992723461 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3992723461 is a deficient number, since it is larger than the sum of its proper divisors (287924219).

3992723461 is a wasteful number, since it uses less digits than its factorization.

3992723461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46584.

The product of its digits is 489888, while the sum is 46.

The square root of 3992723461 is about 63188.0009258087. Note that the first 3 decimals coincide. The cubic root of 3992723461 is about 1586.4379022269.

The spelling of 3992723461 in words is "three billion, nine hundred ninety-two million, seven hundred twenty-three thousand, four hundred sixty-one".