82072901 has 8 divisors (see below), whose sum is σ = 85757184. Its totient is φ = 78398320.

The previous prime is 82072897. The next prime is 82072909. The reversal of 82072901 is 10927028.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 82072901 - 2² = 82072897 is a prime.

It is a super-2 number, since 2×82072901² = 13471922157111602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82072909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18995 + ... + 22911.

It is an arithmetic number, because the mean of its divisors is an integer number (10719648).

Almost surely, 2^82072901 is an apocalyptic number.

It is an amenable number.

82072901 is a deficient number, since it is larger than the sum of its proper divisors (3684283).

82072901 is a wasteful number, since it uses less digits than its factorization.

82072901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4851.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 82072901 is about 9059.4095282198. The cubic root of 82072901 is about 434.5768572083.

Adding to 82072901 its reverse (10927028), we get a palindrome (92999929).

The spelling of 82072901 in words is "eighty-two million, seventy-two thousand, nine hundred one".