1447897928 has 32 divisors (see below), whose sum is σ = 2757231360. Its totient is φ = 712723200.

The previous prime is 1447897853. The next prime is 1447897943. The reversal of 1447897928 is 8297987441.

It is a super-3 number, since 3×1447897928³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131201 + ... + 141807.

It is an arithmetic number, because the mean of its divisors is an integer number (86163480).

Almost surely, 2^1447897928 is an apocalyptic number.

It is an amenable number.

1447897928 is a deficient number, since it is larger than the sum of its proper divisors (1309333432).

1447897928 is a wasteful number, since it uses less digits than its factorization.

1447897928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10877 (or 10873 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 59.

The square root of 1447897928 is about 38051.2539609406. The cubic root of 1447897928 is about 1131.3039813969.

The spelling of 1447897928 in words is "one billion, four hundred forty-seven million, eight hundred ninety-seven thousand, nine hundred twenty-eight".