935454561721 has 9 divisors (see below), whose sum is σ = 938331077229. Its totient is φ = 932586846336.

The previous prime is 935454561703. The next prime is 935454561781. The reversal of 935454561721 is 127165454539.

The square root of 935454561721 is 967189.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 20409265321 + 915045296400 = 142861^2 + 956580^2 .

It is not a de Polignac number, because 935454561721 - 2¹⁷ = 935454430649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (935454561781) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 360760201 + ... + 360762793.

It is an arithmetic number, because the mean of its divisors is an integer number (104259008581).

Almost surely, 2^935454561721 is an apocalyptic number.

935454561721 is the 967189-th square number.

935454561721 is the 483595-th centered octagonal number.

It is an amenable number.

935454561721 is a deficient number, since it is larger than the sum of its proper divisors (2876515508).

935454561721 is an frugal number, since it uses more digits than its factorization.

935454561721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5932 (or 2966 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 52.

The spelling of 935454561721 in words is "nine hundred thirty-five billion, four hundred fifty-four million, five hundred sixty-one thousand, seven hundred twenty-one".