81468676 has 9 divisors (see below), whose sum is σ = 142601781. Its totient is φ = 40725312.

The previous prime is 81468619. The next prime is 81468679. The reversal of 81468676 is 67686418.

It is a happy number.

The square root of 81468676 is 9026.

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

It can be written as a sum of positive squares in only one way, i.e., 36100 + 81432576 = 190^2 + 9024^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81468679) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15796 + ... + 20308.

Almost surely, 2^81468676 is an apocalyptic number.

81468676 is the 9026-th square number.

It is an amenable number.

81468676 is a deficient number, since it is larger than the sum of its proper divisors (61133105).

81468676 is an frugal number, since it uses more digits than its factorization.

81468676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9030 (or 4515 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The cubic root of 81468676 is about 433.5077701398.

The spelling of 81468676 in words is "eighty-one million, four hundred sixty-eight thousand, six hundred seventy-six".