651396347 has 12 divisors (see below), whose sum is σ = 783877680. Its totient is φ = 539085456.

The previous prime is 651396337. The next prime is 651396349. The reversal of 651396347 is 743693156.

It is a happy number.

It is not a de Polignac number, because 651396347 - 2⁸ = 651396091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 651396298 and 651396307.

It is not an unprimeable number, because it can be changed into a prime (651396349) 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 in 11 ways as a sum of consecutive naturals, for example, 227783 + ... + 230624.

It is an arithmetic number, because the mean of its divisors is an integer number (65323140).

Almost surely, 2^651396347 is an apocalyptic number.

651396347 is a deficient number, since it is larger than the sum of its proper divisors (132481333).

651396347 is a wasteful number, since it uses less digits than its factorization.

651396347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458450 (or 458443 counting only the distinct ones).

The product of its digits is 408240, while the sum is 44.

The square root of 651396347 is about 25522.4674943470. The cubic root of 651396347 is about 866.8589541946.

The spelling of 651396347 in words is "six hundred fifty-one million, three hundred ninety-six thousand, three hundred forty-seven".