610998493 has 6 divisors (see below), whose sum is σ = 710753406. Its totient is φ = 523712952.

The previous prime is 610998431. The next prime is 610998511. The reversal of 610998493 is 394899016.

610998493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 581870884 + 29127609 = 24122^2 + 5397^2 .

It is not a de Polignac number, because 610998493 - 2¹³ = 610990301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 12469357 = 610998493 / (6 + 1 + 0 + 9 + 9 + 8 + 4 + 9 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610998293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6234630 + ... + 6234727.

It is an arithmetic number, because the mean of its divisors is an integer number (118458901).

Almost surely, 2^610998493 is an apocalyptic number.

It is an amenable number.

610998493 is a deficient number, since it is larger than the sum of its proper divisors (99754913).

610998493 is a wasteful number, since it uses less digits than its factorization.

610998493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12469371 (or 12469364 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 610998493 is about 24718.3837052506. The cubic root of 610998493 is about 848.5550967779. Note that the first 3 decimals are identical.

The spelling of 610998493 in words is "six hundred ten million, nine hundred ninety-eight thousand, four hundred ninety-three".