651272887 has 2 divisors, whose sum is σ = 651272888. Its totient is φ = 651272886.

The previous prime is 651272879. The next prime is 651272917. The reversal of 651272887 is 788272156.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 651272887 - 2³ = 651272879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (651272837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325636443 + 325636444.

It is an arithmetic number, because the mean of its divisors is an integer number (325636444).

Almost surely, 2^651272887 is an apocalyptic number.

651272887 is a deficient number, since it is larger than the sum of its proper divisors (1).

651272887 is an equidigital number, since it uses as much as digits as its factorization.

651272887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 46.

The square root of 651272887 is about 25520.0487264425. The cubic root of 651272887 is about 866.8041850979.

The spelling of 651272887 in words is "six hundred fifty-one million, two hundred seventy-two thousand, eight hundred eighty-seven".