95981209 has 9 divisors (see below), whose sum is σ = 97950621. Its totient is φ = 94051200.

The previous prime is 95981161. The next prime is 95981261. The reversal of 95981209 is 90218959.

The square root of 95981209 is 9797.

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 24950025 + 71031184 = 4995^2 + 8428^2 .

It is not a de Polignac number, because 95981209 - 2²¹ = 93884057 is a prime.

It is a super-2 number, since 2×95981209² = 18424784962203362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (95981299) 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, 950259 + ... + 950359.

Almost surely, 2^95981209 is an apocalyptic number.

95981209 is the 9797-th square number.

95981209 is the 4899-th centered octagonal number.

It is an amenable number.

95981209 is a deficient number, since it is larger than the sum of its proper divisors (1969412).

95981209 is an frugal number, since it uses more digits than its factorization.

95981209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 43.

The cubic root of 95981209 is about 457.8558196200.

The spelling of 95981209 in words is "ninety-five million, nine hundred eighty-one thousand, two hundred nine".