953541621 has 6 divisors (see below), whose sum is σ = 1377337910. Its totient is φ = 635694408.

The previous prime is 953541601. The next prime is 953541623. The reversal of 953541621 is 126145359.

953541621 is a `hidden beast` number, since 9 + 53 + 541 + 62 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 801512721 + 152028900 = 28311^2 + 12330^2 .

It is not a de Polignac number, because 953541621 - 2⁶ = 953541557 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 (953541623) 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 5 ways as a sum of consecutive naturals, for example, 52974526 + ... + 52974543.

Almost surely, 2^953541621 is an apocalyptic number.

It is an amenable number.

953541621 is a deficient number, since it is larger than the sum of its proper divisors (423796289).

953541621 is a wasteful number, since it uses less digits than its factorization.

953541621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105949075 (or 105949072 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 953541621 is about 30879.4692473818. The cubic root of 953541621 is about 984.2676652613.

The spelling of 953541621 in words is "nine hundred fifty-three million, five hundred forty-one thousand, six hundred twenty-one".