1428514997 has 16 divisors (see below), whose sum is σ = 1799064960. Its totient is φ = 1103965632.

The previous prime is 1428514993. The next prime is 1428515009. The reversal of 1428514997 is 7994158241.

It is a happy number.

It is not a de Polignac number, because 1428514997 - 2² = 1428514993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428514993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178622 + ... + 186447.

It is an arithmetic number, because the mean of its divisors is an integer number (112441560).

Almost surely, 2^1428514997 is an apocalyptic number.

It is an amenable number.

1428514997 is a deficient number, since it is larger than the sum of its proper divisors (370549963).

1428514997 is a wasteful number, since it uses less digits than its factorization.

1428514997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365132.

The product of its digits is 725760, while the sum is 50.

The square root of 1428514997 is about 37795.7007740298. The cubic root of 1428514997 is about 1126.2330505295.

The spelling of 1428514997 in words is "one billion, four hundred twenty-eight million, five hundred fourteen thousand, nine hundred ninety-seven".