61369577 has 2 divisors, whose sum is σ = 61369578. Its totient is φ = 61369576.

The previous prime is 61369559. The next prime is 61369603. The reversal of 61369577 is 77596316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47389456 + 13980121 = 6884^2 + 3739^2 .

It is a cyclic number.

It is not a de Polignac number, because 61369577 - 2⁶ = 61369513 is a prime.

It is not a weakly prime, because it can be changed into another prime (61369547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30684788 + 30684789.

It is an arithmetic number, because the mean of its divisors is an integer number (30684789).

Almost surely, 2^61369577 is an apocalyptic number.

It is an amenable number.

61369577 is a deficient number, since it is larger than the sum of its proper divisors (1).

61369577 is an equidigital number, since it uses as much as digits as its factorization.

61369577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 44.

The square root of 61369577 is about 7833.8736905825. The cubic root of 61369577 is about 394.4431120559.

The spelling of 61369577 in words is "sixty-one million, three hundred sixty-nine thousand, five hundred seventy-seven".