651934089 has 15 divisors (see below), whose sum is σ = 974220247. Its totient is φ = 434469528.

The previous prime is 651934069. The next prime is 651934109. The reversal of 651934089 is 980439156.

It is a happy number.

The square root of 651934089 is 25533.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (651934069) and next prime (651934109).

It can be written as a sum of positive squares in only one way, i.e., 22325625 + 629608464 = 4725^2 + 25092^2 .

It is not a de Polignac number, because 651934089 - 2¹¹ = 651932041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (651934009) 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 14 ways as a sum of consecutive naturals, for example, 228379 + ... + 231215.

Almost surely, 2^651934089 is an apocalyptic number.

651934089 is the 25533-rd square number.

651934089 is the 12767-th centered octagonal number.

It is an amenable number.

651934089 is a deficient number, since it is larger than the sum of its proper divisors (322286158).

651934089 is an frugal number, since it uses more digits than its factorization.

651934089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5686 (or 2840 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The cubic root of 651934089 is about 867.0974256246.

The spelling of 651934089 in words is "six hundred fifty-one million, nine hundred thirty-four thousand, eighty-nine".