86828397 has 4 divisors (see below), whose sum is σ = 115771200. Its totient is φ = 57885596.

The previous prime is 86828393. The next prime is 86828429. The reversal of 86828397 is 79382868.

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 a cyclic number.

It is not a de Polignac number, because 86828397 - 2² = 86828393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86828393) 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, 14471397 + ... + 14471402.

It is an arithmetic number, because the mean of its divisors is an integer number (28942800).

Almost surely, 2^86828397 is an apocalyptic number.

It is an amenable number.

86828397 is a deficient number, since it is larger than the sum of its proper divisors (28942803).

86828397 is a wasteful number, since it uses less digits than its factorization.

86828397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28942802.

The product of its digits is 1161216, while the sum is 51.

The square root of 86828397 is about 9318.1756261620. The cubic root of 86828397 is about 442.8132366709.

The spelling of 86828397 in words is "eighty-six million, eight hundred twenty-eight thousand, three hundred ninety-seven".