61590329 has 2 divisors, whose sum is σ = 61590330. Its totient is φ = 61590328.

The previous prime is 61590317. The next prime is 61590367. The reversal of 61590329 is 92309516.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31866025 + 29724304 = 5645^2 + 5452^2 .

It is a cyclic number.

It is not a de Polignac number, because 61590329 - 2⁴ = 61590313 is a prime.

It is not a weakly prime, because it can be changed into another prime (61590029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30795164 + 30795165.

It is an arithmetic number, because the mean of its divisors is an integer number (30795165).

Almost surely, 2^61590329 is an apocalyptic number.

It is an amenable number.

61590329 is a deficient number, since it is larger than the sum of its proper divisors (1).

61590329 is an equidigital number, since it uses as much as digits as its factorization.

61590329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 61590329 is about 7847.9506242076. The cubic root of 61590329 is about 394.9154954623.

The spelling of 61590329 in words is "sixty-one million, five hundred ninety thousand, three hundred twenty-nine".