875928649 has 2 divisors, whose sum is σ = 875928650. Its totient is φ = 875928648.

The previous prime is 875928629. The next prime is 875928667. The reversal of 875928649 is 946829578.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 764246025 + 111682624 = 27645^2 + 10568^2 .

It is a cyclic number.

It is not a de Polignac number, because 875928649 - 2⁵ = 875928617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 875928593 and 875928602.

It is not a weakly prime, because it can be changed into another prime (875928629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 437964324 + 437964325.

It is an arithmetic number, because the mean of its divisors is an integer number (437964325).

Almost surely, 2^875928649 is an apocalyptic number.

It is an amenable number.

875928649 is a deficient number, since it is larger than the sum of its proper divisors (1).

875928649 is an equidigital number, since it uses as much as digits as its factorization.

875928649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 58.

The square root of 875928649 is about 29596.0917859098. The cubic root of 875928649 is about 956.8038415856.

The spelling of 875928649 in words is "eight hundred seventy-five million, nine hundred twenty-eight thousand, six hundred forty-nine".