7031996405 has 8 divisors (see below), whose sum is σ = 9643880832. Its totient is φ = 4821940368.

The previous prime is 7031996393. The next prime is 7031996407. The reversal of 7031996405 is 5046991307.

7031996405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7031996405 - 2¹² = 7031992309 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 (7031996407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100457057 + ... + 100457126.

It is an arithmetic number, because the mean of its divisors is an integer number (1205485104).

Almost surely, 2^7031996405 is an apocalyptic number.

It is an amenable number.

7031996405 is a deficient number, since it is larger than the sum of its proper divisors (2611884427).

7031996405 is a wasteful number, since it uses less digits than its factorization.

7031996405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200914195.

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 7031996405 is about 83856.9997376486. Note that the first 3 decimals coincide. The cubic root of 7031996405 is about 1915.8413684747.

Adding to 7031996405 its sum of digits (44), we get a square (7031996449 = 83857²).

The spelling of 7031996405 in words is "seven billion, thirty-one million, nine hundred ninety-six thousand, four hundred five".