1428647437 has 16 divisors (see below), whose sum is σ = 1672906752. Its totient is φ = 1194505200.

The previous prime is 1428647401. The next prime is 1428647447. The reversal of 1428647437 is 7347468241.

It is not a de Polignac number, because 1428647437 - 2¹¹ = 1428645389 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 (1428647447) 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, 264312 + ... + 269662.

It is an arithmetic number, because the mean of its divisors is an integer number (104556672).

Almost surely, 2^1428647437 is an apocalyptic number.

It is an amenable number.

1428647437 is a deficient number, since it is larger than the sum of its proper divisors (244259315).

1428647437 is an equidigital number, since it uses as much as digits as its factorization.

1428647437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6288.

The product of its digits is 903168, while the sum is 46.

The square root of 1428647437 is about 37797.4527845462. The cubic root of 1428647437 is about 1126.2678544334.

The spelling of 1428647437 in words is "one billion, four hundred twenty-eight million, six hundred forty-seven thousand, four hundred thirty-seven".