61745693 has 2 divisors, whose sum is σ = 61745694. Its totient is φ = 61745692.

The previous prime is 61745681. The next prime is 61745737. The reversal of 61745693 is 39654716.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55995289 + 5750404 = 7483^2 + 2398^2 .

It is a cyclic number.

It is not a de Polignac number, because 61745693 - 2¹⁸ = 61483549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61745693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61745623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30872846 + 30872847.

It is an arithmetic number, because the mean of its divisors is an integer number (30872847).

Almost surely, 2^61745693 is an apocalyptic number.

It is an amenable number.

61745693 is a deficient number, since it is larger than the sum of its proper divisors (1).

61745693 is an equidigital number, since it uses as much as digits as its factorization.

61745693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 61745693 is about 7857.8427701246. The cubic root of 61745693 is about 395.2472798703.

The spelling of 61745693 in words is "sixty-one million, seven hundred forty-five thousand, six hundred ninety-three".