610748389 has 4 divisors (see below), whose sum is σ = 616153356. Its totient is φ = 605343424.

The previous prime is 610748377. The next prime is 610748399. The reversal of 610748389 is 983847016.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 130919364 + 479829025 = 11442^2 + 21905^2 .

It is a cyclic number.

It is not a de Polignac number, because 610748389 - 2²¹ = 608651237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610748399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2702314 + ... + 2702539.

It is an arithmetic number, because the mean of its divisors is an integer number (154038339).

Almost surely, 2^610748389 is an apocalyptic number.

It is an amenable number.

610748389 is a deficient number, since it is larger than the sum of its proper divisors (5404967).

610748389 is a wasteful number, since it uses less digits than its factorization.

610748389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404966.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 610748389 is about 24713.3241187826. The cubic root of 610748389 is about 848.4392994448.

The spelling of 610748389 in words is "six hundred ten million, seven hundred forty-eight thousand, three hundred eighty-nine".