651327434 has 4 divisors (see below), whose sum is σ = 976991154. Its totient is φ = 325663716.

The previous prime is 651327433. The next prime is 651327463. The reversal of 651327434 is 434723156.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 400200025 + 251127409 = 20005^2 + 15847^2 .

It is a junction number, because it is equal to n+sod(n) for n = 651327394 and 651327403.

It is not an unprimeable number, because it can be changed into a prime (651327431) 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, 162831857 + ... + 162831860.

Almost surely, 2^651327434 is an apocalyptic number.

651327434 is a deficient number, since it is larger than the sum of its proper divisors (325663720).

651327434 is a wasteful number, since it uses less digits than its factorization.

651327434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325663719.

The product of its digits is 60480, while the sum is 35.

The square root of 651327434 is about 25521.1174128407. The cubic root of 651327434 is about 866.8283839905.

The spelling of 651327434 in words is "six hundred fifty-one million, three hundred twenty-seven thousand, four hundred thirty-four".