650988493 has 8 divisors (see below), whose sum is σ = 665406720. Its totient is φ = 636594000.

The previous prime is 650988467. The next prime is 650988551. The reversal of 650988493 is 394889056.

It is a happy number.

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 650988493 - 2⁵ = 650988461 is a prime.

It is a super-2 number, since 2×650988493² = 847572036036822098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 650988493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650988413) 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 7 ways as a sum of consecutive naturals, for example, 56743 + ... + 67243.

It is an arithmetic number, because the mean of its divisors is an integer number (83175840).

Almost surely, 2^650988493 is an apocalyptic number.

It is an amenable number.

650988493 is a deficient number, since it is larger than the sum of its proper divisors (14418227).

650988493 is a wasteful number, since it uses less digits than its factorization.

650988493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11867.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 650988493 is about 25514.4761459059. The cubic root of 650988493 is about 866.6779964166.

The spelling of 650988493 in words is "six hundred fifty million, nine hundred eighty-eight thousand, four hundred ninety-three".