621340514 has 8 divisors (see below), whose sum is σ = 986834988. Its totient is φ = 292395520.

The previous prime is 621340507. The next prime is 621340523. The reversal of 621340514 is 415043126.

It can be written as a sum of positive squares in 2 ways, for example, as 494395225 + 126945289 = 22235^2 + 11267^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9137327 + ... + 9137394.

Almost surely, 2^621340514 is an apocalyptic number.

621340514 is a deficient number, since it is larger than the sum of its proper divisors (365494474).

621340514 is a wasteful number, since it uses less digits than its factorization.

621340514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18274740.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 621340514 is about 24926.7028304989. The cubic root of 621340514 is about 853.3160037103.

The spelling of 621340514 in words is "six hundred twenty-one million, three hundred forty thousand, five hundred fourteen".