650622889 has 8 divisors (see below), whose sum is σ = 755759168. Its totient is φ = 548534160.

The previous prime is 650622877. The next prime is 650622899. The reversal of 650622889 is 988226056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 650622889 - 2²¹ = 648525737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (650622829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761427 + ... + 762280.

It is an arithmetic number, because the mean of its divisors is an integer number (94469896).

Almost surely, 2^650622889 is an apocalyptic number.

It is an amenable number.

650622889 is a deficient number, since it is larger than the sum of its proper divisors (105136279).

650622889 is a wasteful number, since it uses less digits than its factorization.

650622889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523775.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 650622889 is about 25507.3105011093. The cubic root of 650622889 is about 866.5157199802.

It can be divided in two parts, 650622 and 889, that added together give a triangular number (651511 = T₁₁₄₁).

The spelling of 650622889 in words is "six hundred fifty million, six hundred twenty-two thousand, eight hundred eighty-nine".