39760561 has 2 divisors, whose sum is σ = 39760562. Its totient is φ = 39760560.

The previous prime is 39760541. The next prime is 39760573. The reversal of 39760561 is 16506793.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34000561 + 5760000 = 5831^2 + 2400^2 .

It is a cyclic number.

It is not a de Polignac number, because 39760561 - 2¹⁷ = 39629489 is a prime.

It is a super-2 number, since 2×39760561² = 3161804422069442, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39760561.

It is not a weakly prime, because it can be changed into another prime (39760531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19880280 + 19880281.

It is an arithmetic number, because the mean of its divisors is an integer number (19880281).

Almost surely, 2^39760561 is an apocalyptic number.

It is an amenable number.

39760561 is a deficient number, since it is larger than the sum of its proper divisors (1).

39760561 is an equidigital number, since it uses as much as digits as its factorization.

39760561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 39760561 is about 6305.5975926156. The cubic root of 39760561 is about 341.3114316451.

The spelling of 39760561 in words is "thirty-nine million, seven hundred sixty thousand, five hundred sixty-one".