1423176397 has 2 divisors, whose sum is σ = 1423176398. Its totient is φ = 1423176396.

The previous prime is 1423176343. The next prime is 1423176401. The reversal of 1423176397 is 7936713241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1209022441 + 214153956 = 34771^2 + 14634^2 .

It is an emirp because it is prime and its reverse (7936713241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423176397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423176317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711588198 + 711588199.

It is an arithmetic number, because the mean of its divisors is an integer number (711588199).

Almost surely, 2^1423176397 is an apocalyptic number.

It is an amenable number.

1423176397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423176397 is an equidigital number, since it uses as much as digits as its factorization.

1423176397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 43.

The square root of 1423176397 is about 37725.0102319403. The cubic root of 1423176397 is about 1124.8283252771.

The spelling of 1423176397 in words is "one billion, four hundred twenty-three million, one hundred seventy-six thousand, three hundred ninety-seven".