82401073 has 4 divisors (see below), whose sum is σ = 82705408. Its totient is φ = 82096740.

The previous prime is 82401071. The next prime is 82401079. The reversal of 82401073 is 37010428.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 82401073 - 2¹ = 82401071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82401071) 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, 151761 + ... + 152302.

It is an arithmetic number, because the mean of its divisors is an integer number (20676352).

Almost surely, 2^82401073 is an apocalyptic number.

It is an amenable number.

82401073 is a deficient number, since it is larger than the sum of its proper divisors (304335).

82401073 is a wasteful number, since it uses less digits than its factorization.

82401073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304334.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 82401073 is about 9077.5036766723. The cubic root of 82401073 is about 435.1553116087.

The spelling of 82401073 in words is "eighty-two million, four hundred one thousand, seventy-three".