1423408997 has 8 divisors (see below), whose sum is σ = 1586462400. Its totient is φ = 1269169344.

The previous prime is 1423408979. The next prime is 1423409021. The reversal of 1423408997 is 7998043241.

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

It is a cyclic number.

It is not a de Polignac number, because 1423408997 - 2¹² = 1423404901 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 (1423408967) 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, 2203097 + ... + 2203742.

It is an arithmetic number, because the mean of its divisors is an integer number (198307800).

Almost surely, 2^1423408997 is an apocalyptic number.

1423408997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1423408997 is a deficient number, since it is larger than the sum of its proper divisors (163053403).

1423408997 is a wasteful number, since it uses less digits than its factorization.

1423408997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4406875.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 1423408997 is about 37728.0929414674. The cubic root of 1423408997 is about 1124.8896015453.

The spelling of 1423408997 in words is "one billion, four hundred twenty-three million, four hundred eight thousand, nine hundred ninety-seven".