61647059 has 2 divisors, whose sum is σ = 61647060. Its totient is φ = 61647058.

The previous prime is 61647043. The next prime is 61647101. The reversal of 61647059 is 95074616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61647059 - 2⁴ = 61647043 is a prime.

It is not a weakly prime, because it can be changed into another prime (61644059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30823529 + 30823530.

It is an arithmetic number, because the mean of its divisors is an integer number (30823530).

Almost surely, 2^61647059 is an apocalyptic number.

61647059 is a deficient number, since it is larger than the sum of its proper divisors (1).

61647059 is an equidigital number, since it uses as much as digits as its factorization.

61647059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 61647059 is about 7851.5641116914. The cubic root of 61647059 is about 395.0367086538.

The spelling of 61647059 in words is "sixty-one million, six hundred forty-seven thousand, fifty-nine".