601670621 has 2 divisors, whose sum is σ = 601670622. Its totient is φ = 601670620.

The previous prime is 601670609. The next prime is 601670659. The reversal of 601670621 is 126076106.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 537590596 + 64080025 = 23186^2 + 8005^2 .

It is a cyclic number.

It is not a de Polignac number, because 601670621 - 2²⁶ = 534561757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (601670521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300835310 + 300835311.

It is an arithmetic number, because the mean of its divisors is an integer number (300835311).

Almost surely, 2^601670621 is an apocalyptic number.

It is an amenable number.

601670621 is a deficient number, since it is larger than the sum of its proper divisors (1).

601670621 is an equidigital number, since it uses as much as digits as its factorization.

601670621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 601670621 is about 24528.9751314644. The cubic root of 601670621 is about 844.2147489488.

The spelling of 601670621 in words is "six hundred one million, six hundred seventy thousand, six hundred twenty-one".