1995752623 has 4 divisors (see below), whose sum is σ = 1996912648. Its totient is φ = 1994592600.

The previous prime is 1995752611. The next prime is 1995752699. The reversal of 1995752623 is 3262575991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1995752623 is a prime.

It is a super-2 number, since 2×1995752623² = 7966057064422760258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995752323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577428 + ... + 580873.

It is an arithmetic number, because the mean of its divisors is an integer number (499228162).

Almost surely, 2^1995752623 is an apocalyptic number.

1995752623 is a deficient number, since it is larger than the sum of its proper divisors (1160025).

1995752623 is a wasteful number, since it uses less digits than its factorization.

1995752623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160024.

The product of its digits is 1020600, while the sum is 49.

The square root of 1995752623 is about 44673.8471927368. The cubic root of 1995752623 is about 1259.0285244996.

The spelling of 1995752623 in words is "one billion, nine hundred ninety-five million, seven hundred fifty-two thousand, six hundred twenty-three".