81467462 has 4 divisors (see below), whose sum is σ = 122201196. Its totient is φ = 40733730.

The previous prime is 81467429. The next prime is 81467479. The reversal of 81467462 is 26476418.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×81467462³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20366864 + ... + 20366867.

It is an arithmetic number, because the mean of its divisors is an integer number (30550299).

Almost surely, 2^81467462 is an apocalyptic number.

81467462 is a deficient number, since it is larger than the sum of its proper divisors (40733734).

81467462 is a wasteful number, since it uses less digits than its factorization.

81467462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40733733.

The product of its digits is 64512, while the sum is 38.

The square root of 81467462 is about 9025.9327495833. The cubic root of 81467462 is about 433.5056168335.

The spelling of 81467462 in words is "eighty-one million, four hundred sixty-seven thousand, four hundred sixty-two".