61763617 has 2 divisors, whose sum is σ = 61763618. Its totient is φ = 61763616.

The previous prime is 61763561. The next prime is 61763627. The reversal of 61763617 is 71636716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61606801 + 156816 = 7849^2 + 396^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61763617 is a prime.

It is not a weakly prime, because it can be changed into another prime (61763627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30881808 + 30881809.

It is an arithmetic number, because the mean of its divisors is an integer number (30881809).

Almost surely, 2^61763617 is an apocalyptic number.

It is an amenable number.

61763617 is a deficient number, since it is larger than the sum of its proper divisors (1).

61763617 is an equidigital number, since it uses as much as digits as its factorization.

61763617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 61763617 is about 7858.9832039520. The cubic root of 61763617 is about 395.2855212790.

The spelling of 61763617 in words is "sixty-one million, seven hundred sixty-three thousand, six hundred seventeen".