1000456897 has 16 divisors (see below), whose sum is σ = 1109587968. Its totient is φ = 894430080.

The previous prime is 1000456889. The next prime is 1000456937. The reversal of 1000456897 is 7986540001.

It is a cyclic number.

It is not a de Polignac number, because 1000456897 - 2³ = 1000456889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000456697) 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, 305923 + ... + 309175.

It is an arithmetic number, because the mean of its divisors is an integer number (69349248).

Almost surely, 2^1000456897 is an apocalyptic number.

It is an amenable number.

1000456897 is a deficient number, since it is larger than the sum of its proper divisors (109131071).

1000456897 is a wasteful number, since it uses less digits than its factorization.

1000456897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1000456897 is about 31629.9999525767. Note that the first 4 decimals coincide. The cubic root of 1000456897 is about 1000.1522758109.

Adding to 1000456897 its reverse (7986540001), we get a palindrome (8986996898).

The spelling of 1000456897 in words is "one billion, four hundred fifty-six thousand, eight hundred ninety-seven".