61948811 has 2 divisors, whose sum is σ = 61948812. Its totient is φ = 61948810.

The previous prime is 61948801. The next prime is 61948813. The reversal of 61948811 is 11884916.

61948811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61948811 - 2²² = 57754507 is a prime.

Together with 61948813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61948813) 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, 30974405 + 30974406.

It is an arithmetic number, because the mean of its divisors is an integer number (30974406).

Almost surely, 2^61948811 is an apocalyptic number.

61948811 is a deficient number, since it is larger than the sum of its proper divisors (1).

61948811 is an equidigital number, since it uses as much as digits as its factorization.

61948811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 38.

The square root of 61948811 is about 7870.7566980564. The cubic root of 61948811 is about 395.6802059698.

The spelling of 61948811 in words is "sixty-one million, nine hundred forty-eight thousand, eight hundred eleven".