81462676 has 12 divisors (see below), whose sum is σ = 143868340. Its totient is φ = 40357440.

The previous prime is 81462659. The next prime is 81462677. The reversal of 81462676 is 67626418.

It can be written as a sum of positive squares in 2 ways, for example, as 20466576 + 60996100 = 4524^2 + 7810^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81462677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92985 + ... + 93856.

Almost surely, 2^81462676 is an apocalyptic number.

It is an amenable number.

81462676 is a deficient number, since it is larger than the sum of its proper divisors (62405664).

81462676 is a wasteful number, since it uses less digits than its factorization.

81462676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186954 (or 186952 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 81462676 is about 9025.6676207359. The cubic root of 81462676 is about 433.4971275608.

The spelling of 81462676 in words is "eighty-one million, four hundred sixty-two thousand, six hundred seventy-six".