650919377 has 2 divisors, whose sum is σ = 650919378. Its totient is φ = 650919376.

The previous prime is 650919371. The next prime is 650919391. The reversal of 650919377 is 773919056.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 598487296 + 52432081 = 24464^2 + 7241^2 .

It is a cyclic number.

It is not a de Polignac number, because 650919377 - 2²² = 646725073 is a prime.

It is not a weakly prime, because it can be changed into another prime (650919371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325459688 + 325459689.

It is an arithmetic number, because the mean of its divisors is an integer number (325459689).

Almost surely, 2^650919377 is an apocalyptic number.

It is an amenable number.

650919377 is a deficient number, since it is larger than the sum of its proper divisors (1).

650919377 is an equidigital number, since it uses as much as digits as its factorization.

650919377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 357210, while the sum is 47.

The square root of 650919377 is about 25513.1216631756. The cubic root of 650919377 is about 866.6473233520.

The spelling of 650919377 in words is "six hundred fifty million, nine hundred nineteen thousand, three hundred seventy-seven".