1004651897 has 2 divisors, whose sum is σ = 1004651898. Its totient is φ = 1004651896.

The previous prime is 1004651887. The next prime is 1004651909. The reversal of 1004651897 is 7981564001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 731377936 + 273273961 = 27044^2 + 16531^2 .

It is an emirp because it is prime and its reverse (7981564001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1004651897 - 2⁴ = 1004651881 is a prime.

It is a super-3 number, since 3×1004651897³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1004651827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502325948 + 502325949.

It is an arithmetic number, because the mean of its divisors is an integer number (502325949).

Almost surely, 2^1004651897 is an apocalyptic number.

It is an amenable number.

1004651897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004651897 is an equidigital number, since it uses as much as digits as its factorization.

1004651897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 1004651897 is about 31696.2442096852. The cubic root of 1004651897 is about 1001.5482340676.

The spelling of 1004651897 in words is "one billion, four million, six hundred fifty-one thousand, eight hundred ninety-seven".