58878409 has 2 divisors, whose sum is σ = 58878410. Its totient is φ = 58878408.

The previous prime is 58878403. The next prime is 58878427. The reversal of 58878409 is 90487885.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51840000 + 7038409 = 7200^2 + 2653^2 .

It is a cyclic number.

It is not a de Polignac number, because 58878409 - 2²³ = 50489801 is a prime.

It is not a weakly prime, because it can be changed into another prime (58878403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29439204 + 29439205.

It is an arithmetic number, because the mean of its divisors is an integer number (29439205).

Almost surely, 2^58878409 is an apocalyptic number.

It is an amenable number.

58878409 is a deficient number, since it is larger than the sum of its proper divisors (1).

58878409 is an equidigital number, since it uses as much as digits as its factorization.

58878409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 58878409 is about 7673.2267658398. The cubic root of 58878409 is about 389.0320264052.

The spelling of 58878409 in words is "fifty-eight million, eight hundred seventy-eight thousand, four hundred nine".