81462974 has 8 divisors (see below), whose sum is σ = 125497128. Its totient is φ = 39630600.

The previous prime is 81462973. The next prime is 81462989. The reversal of 81462974 is 47926418.

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

It is a super-2 number, since 2×81462974² = 13272432265849352, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81462971) 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, 550352 + ... + 550499.

It is an arithmetic number, because the mean of its divisors is an integer number (15687141).

Almost surely, 2^81462974 is an apocalyptic number.

81462974 is a deficient number, since it is larger than the sum of its proper divisors (44034154).

81462974 is a wasteful number, since it uses less digits than its factorization.

81462974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100890.

The product of its digits is 96768, while the sum is 41.

The square root of 81462974 is about 9025.6841291949. The cubic root of 81462974 is about 433.4976561545.

The spelling of 81462974 in words is "eighty-one million, four hundred sixty-two thousand, nine hundred seventy-four".