81614698 has 8 divisors (see below), whose sum is σ = 133551360. Its totient is φ = 37097580.

The previous prime is 81614693. The next prime is 81614699. The reversal of 81614698 is 89641618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (81614693) 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, 1854858 + ... + 1854901.

It is an arithmetic number, because the mean of its divisors is an integer number (16693920).

Almost surely, 2^81614698 is an apocalyptic number.

81614698 is a deficient number, since it is larger than the sum of its proper divisors (51936662).

81614698 is a wasteful number, since it uses less digits than its factorization.

81614698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709772.

The product of its digits is 82944, while the sum is 43.

The square root of 81614698 is about 9034.0853438519. The cubic root of 81614698 is about 433.7666176394.

The spelling of 81614698 in words is "eighty-one million, six hundred fourteen thousand, six hundred ninety-eight".