650976487 has 4 divisors (see below), whose sum is σ = 743973136. Its totient is φ = 557979840.

The previous prime is 650976481. The next prime is 650976509. The reversal of 650976487 is 784679056.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-650976487 is a prime.

It is a super-2 number, since 2×650976487² = 847540773253722338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650976481) 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 3 ways as a sum of consecutive naturals, for example, 46498314 + ... + 46498327.

It is an arithmetic number, because the mean of its divisors is an integer number (185993284).

Almost surely, 2^650976487 is an apocalyptic number.

650976487 is a deficient number, since it is larger than the sum of its proper divisors (92996649).

650976487 is an equidigital number, since it uses as much as digits as its factorization.

650976487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92996648.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The square root of 650976487 is about 25514.2408666219. The cubic root of 650976487 is about 866.6726684167.

The spelling of 650976487 in words is "six hundred fifty million, nine hundred seventy-six thousand, four hundred eighty-seven".