39620461 has 2 divisors, whose sum is σ = 39620462. Its totient is φ = 39620460.

The previous prime is 39620459. The next prime is 39620509. The reversal of 39620461 is 16402693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28026436 + 11594025 = 5294^2 + 3405^2 .

It is a cyclic number.

It is not a de Polignac number, because 39620461 - 2¹ = 39620459 is a prime.

Together with 39620459, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (39620411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19810230 + 19810231.

It is an arithmetic number, because the mean of its divisors is an integer number (19810231).

Almost surely, 2^39620461 is an apocalyptic number.

It is an amenable number.

39620461 is a deficient number, since it is larger than the sum of its proper divisors (1).

39620461 is an equidigital number, since it uses as much as digits as its factorization.

39620461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 39620461 is about 6294.4786122442. The cubic root of 39620461 is about 340.9100791158.

The spelling of 39620461 in words is "thirty-nine million, six hundred twenty thousand, four hundred sixty-one".