650576421 has 64 divisors (see below), whose sum is σ = 1081036800. Its totient is φ = 383356800.

The previous prime is 650576351. The next prime is 650576429. The reversal of 650576421 is 124675056.

It is a happy number.

650576421 is a `hidden beast` number, since 6 + 5 + 0 + 5 + 7 + 642 + 1 = 666.

It is not a de Polignac number, because 650576421 - 2⁷ = 650576293 is a prime.

It is a super-2 number, since 2×650576421² = 846499359122338482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650576429) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2400516 + ... + 2400786.

It is an arithmetic number, because the mean of its divisors is an integer number (16891200).

Almost surely, 2^650576421 is an apocalyptic number.

It is an amenable number.

650576421 is a deficient number, since it is larger than the sum of its proper divisors (430460379).

650576421 is a wasteful number, since it uses less digits than its factorization.

650576421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 650576421 is about 25506.3996087257. The cubic root of 650576421 is about 866.4950904103.

The spelling of 650576421 in words is "six hundred fifty million, five hundred seventy-six thousand, four hundred twenty-one".