61910623 has 2 divisors, whose sum is σ = 61910624. Its totient is φ = 61910622.

The previous prime is 61910591. The next prime is 61910659. The reversal of 61910623 is 32601916.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61910623 - 2⁵ = 61910591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61910591 and 61910600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61910423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30955311 + 30955312.

It is an arithmetic number, because the mean of its divisors is an integer number (30955312).

Almost surely, 2^61910623 is an apocalyptic number.

61910623 is a deficient number, since it is larger than the sum of its proper divisors (1).

61910623 is an equidigital number, since it uses as much as digits as its factorization.

61910623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 61910623 is about 7868.3303819807. The cubic root of 61910623 is about 395.5988843033.

The spelling of 61910623 in words is "sixty-one million, nine hundred ten thousand, six hundred twenty-three".