610398621 has 12 divisors (see below), whose sum is σ = 1007642272. Its totient is φ = 348799176.

The previous prime is 610398599. The next prime is 610398647. The reversal of 610398621 is 126893016.

610398621 is a `hidden beast` number, since 610 + 39 + 8 + 6 + 2 + 1 = 666.

610398621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 610398621 - 2⁵ = 610398589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610398121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4844371 + ... + 4844496.

Almost surely, 2^610398621 is an apocalyptic number.

It is an amenable number.

610398621 is a deficient number, since it is larger than the sum of its proper divisors (397243651).

610398621 is a wasteful number, since it uses less digits than its factorization.

610398621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9688880 (or 9688877 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 610398621 is about 24706.2465987855. The cubic root of 610398621 is about 848.2773049749.

The spelling of 610398621 in words is "six hundred ten million, three hundred ninety-eight thousand, six hundred twenty-one".