995063621 has 4 divisors (see below), whose sum is σ = 998243052. Its totient is φ = 991884192.

The previous prime is 995063617. The next prime is 995063623. The reversal of 995063621 is 126360599.

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

It can be written as a sum of positive squares in 2 ways, for example, as 437395396 + 557668225 = 20914^2 + 23615^2 .

It is a cyclic number.

It is not a de Polignac number, because 995063621 - 2² = 995063617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (995063623) 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, 1589246 + ... + 1589871.

It is an arithmetic number, because the mean of its divisors is an integer number (249560763).

Almost surely, 2^995063621 is an apocalyptic number.

It is an amenable number.

995063621 is a deficient number, since it is larger than the sum of its proper divisors (3179431).

995063621 is a wasteful number, since it uses less digits than its factorization.

995063621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179430.

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

The square root of 995063621 is about 31544.6290357011. The cubic root of 995063621 is about 998.3518253461.

The spelling of 995063621 in words is "nine hundred ninety-five million, sixty-three thousand, six hundred twenty-one".