61590079 has 2 divisors, whose sum is σ = 61590080. Its totient is φ = 61590078.

The previous prime is 61590037. The next prime is 61590091. The reversal of 61590079 is 97009516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61590079 - 2¹³ = 61581887 is a prime.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30795039 + 30795040.

It is an arithmetic number, because the mean of its divisors is an integer number (30795040).

Almost surely, 2^61590079 is an apocalyptic number.

61590079 is a deficient number, since it is larger than the sum of its proper divisors (1).

61590079 is an equidigital number, since it uses as much as digits as its factorization.

61590079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 61590079 is about 7847.9346964663. The cubic root of 61590079 is about 394.9149611305.

The spelling of 61590079 in words is "sixty-one million, five hundred ninety thousand, seventy-nine".