82370401 has 4 divisors (see below), whose sum is σ = 82401732. Its totient is φ = 82339072.

The previous prime is 82370381. The next prime is 82370417. The reversal of 82370401 is 10407328.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19580625 + 62789776 = 4425^2 + 7924^2 .

It is a cyclic number.

It is not a de Polignac number, because 82370401 - 2¹³ = 82362209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82370201) 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, 11320 + ... + 17113.

It is an arithmetic number, because the mean of its divisors is an integer number (20600433).

Almost surely, 2^82370401 is an apocalyptic number.

It is an amenable number.

82370401 is a deficient number, since it is larger than the sum of its proper divisors (31331).

82370401 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 12 representation: 82370401 = (23704081)₁₂.

82370401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31330.

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

The square root of 82370401 is about 9075.8140681704. The cubic root of 82370401 is about 435.1013125541.

Adding to 82370401 its reverse (10407328), we get a palindrome (92777729).

The spelling of 82370401 in words is "eighty-two million, three hundred seventy thousand, four hundred one".