650262397 has 2 divisors, whose sum is σ = 650262398. Its totient is φ = 650262396.

The previous prime is 650262329. The next prime is 650262407. The reversal of 650262397 is 793262056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 445800996 + 204461401 = 21114^2 + 14299^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650262397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650262307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325131198 + 325131199.

It is an arithmetic number, because the mean of its divisors is an integer number (325131199).

Almost surely, 2^650262397 is an apocalyptic number.

It is an amenable number.

650262397 is a deficient number, since it is larger than the sum of its proper divisors (1).

650262397 is an equidigital number, since it uses as much as digits as its factorization.

650262397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 650262397 is about 25500.2430772728. The cubic root of 650262397 is about 866.3556530145.

The spelling of 650262397 in words is "six hundred fifty million, two hundred sixty-two thousand, three hundred ninety-seven".