35720497 has 2 divisors, whose sum is σ = 35720498. Its totient is φ = 35720496.

The previous prime is 35720473. The next prime is 35720507. The reversal of 35720497 is 79402753.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35712576 + 7921 = 5976^2 + 89^2 .

It is an emirp because it is prime and its reverse (79402753) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35720497 is a prime.

It is not a weakly prime, because it can be changed into another prime (35720407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17860248 + 17860249.

It is an arithmetic number, because the mean of its divisors is an integer number (17860249).

Almost surely, 2^35720497 is an apocalyptic number.

It is an amenable number.

35720497 is a deficient number, since it is larger than the sum of its proper divisors (1).

35720497 is an equidigital number, since it uses as much as digits as its factorization.

35720497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 35720497 is about 5976.6626975261. The cubic root of 35720497 is about 329.3359680556.

The spelling of 35720497 in words is "thirty-five million, seven hundred twenty thousand, four hundred ninety-seven".