61710823 has 2 divisors, whose sum is σ = 61710824. Its totient is φ = 61710822.

The previous prime is 61710821. The next prime is 61710829. The reversal of 61710823 is 32801716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61710823 - 2¹ = 61710821 is a prime.

Together with 61710821, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 61710791 and 61710800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61710821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30855411 + 30855412.

It is an arithmetic number, because the mean of its divisors is an integer number (30855412).

Almost surely, 2^61710823 is an apocalyptic number.

61710823 is a deficient number, since it is larger than the sum of its proper divisors (1).

61710823 is an equidigital number, since it uses as much as digits as its factorization.

61710823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 61710823 is about 7855.6236544274. The cubic root of 61710823 is about 395.1728624373.

The spelling of 61710823 in words is "sixty-one million, seven hundred ten thousand, eight hundred twenty-three".