610207421 has 4 divisors (see below), whose sum is σ = 612739644. Its totient is φ = 607675200.

The previous prime is 610207393. The next prime is 610207463. The reversal of 610207421 is 124702016.

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 506880196 + 103327225 = 22514^2 + 10165^2 .

It is a cyclic number.

It is not a de Polignac number, because 610207421 - 2²² = 606013117 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 (610207121) 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, 1265750 + ... + 1266231.

It is an arithmetic number, because the mean of its divisors is an integer number (153184911).

Almost surely, 2^610207421 is an apocalyptic number.

It is an amenable number.

610207421 is a deficient number, since it is larger than the sum of its proper divisors (2532223).

610207421 is a wasteful number, since it uses less digits than its factorization.

610207421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532222.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 610207421 is about 24702.3768289612. The cubic root of 610207421 is about 848.1887248499.

Adding to 610207421 its reverse (124702016), we get a palindrome (734909437).

The spelling of 610207421 in words is "six hundred ten million, two hundred seven thousand, four hundred twenty-one".