78627623 has 2 divisors, whose sum is σ = 78627624. Its totient is φ = 78627622.

The previous prime is 78627599. The next prime is 78627629. The reversal of 78627623 is 32672687.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78627623 - 2¹⁰ = 78626599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78627629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39313811 + 39313812.

It is an arithmetic number, because the mean of its divisors is an integer number (39313812).

Almost surely, 2^78627623 is an apocalyptic number.

78627623 is a deficient number, since it is larger than the sum of its proper divisors (1).

78627623 is an equidigital number, since it uses as much as digits as its factorization.

78627623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 41.

The square root of 78627623 is about 8867.2218309908. The cubic root of 78627623 is about 428.4087990833.

The spelling of 78627623 in words is "seventy-eight million, six hundred twenty-seven thousand, six hundred twenty-three".