995673409 has 2 divisors, whose sum is σ = 995673410. Its totient is φ = 995673408.

The previous prime is 995673403. The next prime is 995673457. The reversal of 995673409 is 904376599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 506025025 + 489648384 = 22495^2 + 22128^2 .

It is a cyclic number.

It is not a de Polignac number, because 995673409 - 2⁵ = 995673377 is a prime.

It is not a weakly prime, because it can be changed into another prime (995673403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497836704 + 497836705.

It is an arithmetic number, because the mean of its divisors is an integer number (497836705).

Almost surely, 2^995673409 is an apocalyptic number.

It is an amenable number.

995673409 is a deficient number, since it is larger than the sum of its proper divisors (1).

995673409 is an equidigital number, since it uses as much as digits as its factorization.

995673409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1837080, while the sum is 52.

The square root of 995673409 is about 31554.2930359721. The cubic root of 995673409 is about 998.5557180539. Note that the first 3 decimals are identical.

The spelling of 995673409 in words is "nine hundred ninety-five million, six hundred seventy-three thousand, four hundred nine".