1423203697 has 4 divisors (see below), whose sum is σ = 1424990196. Its totient is φ = 1421417200.

The previous prime is 1423203659. The next prime is 1423203701. The reversal of 1423203697 is 7963023241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 609299856 + 813903841 = 24684^2 + 28529^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423203697 - 2²⁷ = 1288985969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423203997) 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, 892054 + ... + 893647.

It is an arithmetic number, because the mean of its divisors is an integer number (356247549).

Almost surely, 2^1423203697 is an apocalyptic number.

It is an amenable number.

1423203697 is a deficient number, since it is larger than the sum of its proper divisors (1786499).

1423203697 is an equidigital number, since it uses as much as digits as its factorization.

1423203697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786498.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 1423203697 is about 37725.3720591328. The cubic root of 1423203697 is about 1124.8355175495.

It can be divided in two parts, 1423 and 203697, that added together give a triangular number (205120 = T₆₄₀).

The spelling of 1423203697 in words is "one billion, four hundred twenty-three million, two hundred three thousand, six hundred ninety-seven".