2176913397 has 4 divisors (see below), whose sum is σ = 2902551200. Its totient is φ = 1451275596.

The previous prime is 2176913381. The next prime is 2176913441. The reversal of 2176913397 is 7933196712.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2176913397 - 2⁴ = 2176913381 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 (2176913317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362818897 + ... + 362818902.

It is an arithmetic number, because the mean of its divisors is an integer number (725637800).

Almost surely, 2^2176913397 is an apocalyptic number.

It is an amenable number.

2176913397 is a deficient number, since it is larger than the sum of its proper divisors (725637803).

2176913397 is an equidigital number, since it uses as much as digits as its factorization.

2176913397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725637802.

The product of its digits is 428652, while the sum is 48.

The square root of 2176913397 is about 46657.4045248983. The cubic root of 2176913397 is about 1296.0260095898.

The spelling of 2176913397 in words is "two billion, one hundred seventy-six million, nine hundred thirteen thousand, three hundred ninety-seven".