61395623 has 2 divisors, whose sum is σ = 61395624. Its totient is φ = 61395622.

The previous prime is 61395601. The next prime is 61395629. The reversal of 61395623 is 32659316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61395623 - 2¹⁴ = 61379239 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61395629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30697811 + 30697812.

It is an arithmetic number, because the mean of its divisors is an integer number (30697812).

Almost surely, 2^61395623 is an apocalyptic number.

61395623 is a deficient number, since it is larger than the sum of its proper divisors (1).

61395623 is an equidigital number, since it uses as much as digits as its factorization.

61395623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 35.

The square root of 61395623 is about 7835.5359101978. The cubic root of 61395623 is about 394.4989063257.

It can be divided in two parts, 6 and 1395623, that multiplied together give a palindrome (8373738).

The spelling of 61395623 in words is "sixty-one million, three hundred ninety-five thousand, six hundred twenty-three".