646411114 has 4 divisors (see below), whose sum is σ = 969616674. Its totient is φ = 323205556.

The previous prime is 646411099. The next prime is 646411121. The reversal of 646411114 is 411114646.

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

It can be written as a sum of positive squares in only one way, i.e., 614296225 + 32114889 = 24785^2 + 5667^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161602777 + ... + 161602780.

Almost surely, 2^646411114 is an apocalyptic number.

646411114 is a deficient number, since it is larger than the sum of its proper divisors (323205560).

646411114 is a wasteful number, since it uses less digits than its factorization.

646411114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323205559.

The product of its digits is 2304, while the sum is 28.

The square root of 646411114 is about 25424.6162999562. The cubic root of 646411114 is about 864.6418885822.

It can be divided in two parts, 6464 and 11114, that added together give a triangular number (17578 = T₁₈₇).

The spelling of 646411114 in words is "six hundred forty-six million, four hundred eleven thousand, one hundred fourteen".