190695623 has 2 divisors, whose sum is σ = 190695624. Its totient is φ = 190695622.

The previous prime is 190695607. The next prime is 190695653. The reversal of 190695623 is 326596091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190695623 - 2⁴ = 190695607 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 (190695653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95347811 + 95347812.

It is an arithmetic number, because the mean of its divisors is an integer number (95347812).

Almost surely, 2^190695623 is an apocalyptic number.

190695623 is a deficient number, since it is larger than the sum of its proper divisors (1).

190695623 is an equidigital number, since it uses as much as digits as its factorization.

190695623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 190695623 is about 13809.2585970428. The cubic root of 190695623 is about 575.5904437737.

The spelling of 190695623 in words is "one hundred ninety million, six hundred ninety-five thousand, six hundred twenty-three".