61290479 has 2 divisors, whose sum is σ = 61290480. Its totient is φ = 61290478.

The previous prime is 61290433. The next prime is 61290511. The reversal of 61290479 is 97409216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61290479 - 2⁸ = 61290223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61230479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30645239 + 30645240.

It is an arithmetic number, because the mean of its divisors is an integer number (30645240).

Almost surely, 2^61290479 is an apocalyptic number.

61290479 is a deficient number, since it is larger than the sum of its proper divisors (1).

61290479 is an equidigital number, since it uses as much as digits as its factorization.

61290479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 61290479 is about 7828.8236025600. The cubic root of 61290479 is about 394.2735759621.

The spelling of 61290479 in words is "sixty-one million, two hundred ninety thousand, four hundred seventy-nine".