81482627 has 4 divisors (see below), whose sum is σ = 81657576. Its totient is φ = 81307680.

The previous prime is 81482617. The next prime is 81482647. The reversal of 81482627 is 72628418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72628418 = 2 ⋅36314209.

It is a cyclic number.

It is not a de Polignac number, because 81482627 - 2⁸ = 81482371 is a prime.

It is a super-2 number, since 2×81482627² = 13278837005642258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81482617) 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, 86774 + ... + 87707.

It is an arithmetic number, because the mean of its divisors is an integer number (20414394).

Almost surely, 2^81482627 is an apocalyptic number.

81482627 is a deficient number, since it is larger than the sum of its proper divisors (174949).

81482627 is a wasteful number, since it uses less digits than its factorization.

81482627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174948.

The product of its digits is 43008, while the sum is 38.

The square root of 81482627 is about 9026.7727898735. The cubic root of 81482627 is about 433.5325138901.

The spelling of 81482627 in words is "eighty-one million, four hundred eighty-two thousand, six hundred twenty-seven".