1443679697 has 4 divisors (see below), whose sum is σ = 1443801840. Its totient is φ = 1443557556.

The previous prime is 1443679669. The next prime is 1443679747. The reversal of 1443679697 is 7969763441.

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 a cyclic number.

It is not a de Polignac number, because 1443679697 - 2¹⁰ = 1443678673 is a prime.

It is a super-2 number, since 2×1443679697² = 4168422135060023618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1443679607) 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, 41183 + ... + 67700.

It is an arithmetic number, because the mean of its divisors is an integer number (360950460).

Almost surely, 2^1443679697 is an apocalyptic number.

It is an amenable number.

1443679697 is a deficient number, since it is larger than the sum of its proper divisors (122143).

1443679697 is a wasteful number, since it uses less digits than its factorization.

1443679697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122142.

The product of its digits is 6858432, while the sum is 56.

The square root of 1443679697 is about 37995.7852531041. The cubic root of 1443679697 is about 1130.2042852529.

The spelling of 1443679697 in words is "one billion, four hundred forty-three million, six hundred seventy-nine thousand, six hundred ninety-seven".