61629377 has 2 divisors, whose sum is σ = 61629378. Its totient is φ = 61629376.

The previous prime is 61629367. The next prime is 61629389. The reversal of 61629377 is 77392616.

61629377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49126081 + 12503296 = 7009^2 + 3536^2 .

It is a cyclic number.

It is not a de Polignac number, because 61629377 - 2¹⁰ = 61628353 is a prime.

It is not a weakly prime, because it can be changed into another prime (61629307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30814688 + 30814689.

It is an arithmetic number, because the mean of its divisors is an integer number (30814689).

Almost surely, 2^61629377 is an apocalyptic number.

It is an amenable number.

61629377 is a deficient number, since it is larger than the sum of its proper divisors (1).

61629377 is an equidigital number, since it uses as much as digits as its factorization.

61629377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 41.

The square root of 61629377 is about 7850.4380132576. The cubic root of 61629377 is about 394.9989360651.

The spelling of 61629377 in words is "sixty-one million, six hundred twenty-nine thousand, three hundred seventy-seven".