84256997 has 4 divisors (see below), whose sum is σ = 91916736. Its totient is φ = 76597260.

The previous prime is 84256993. The next prime is 84256999. The reversal of 84256997 is 79965248.

It is a happy number.

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 84256997 - 2² = 84256993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84256993) 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, 3829853 + ... + 3829874.

It is an arithmetic number, because the mean of its divisors is an integer number (22979184).

Almost surely, 2^84256997 is an apocalyptic number.

It is an amenable number.

84256997 is a deficient number, since it is larger than the sum of its proper divisors (7659739).

84256997 is a wasteful number, since it uses less digits than its factorization.

84256997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7659738.

The product of its digits is 1088640, while the sum is 50.

The square root of 84256997 is about 9179.1610183066. The cubic root of 84256997 is about 438.3980954911.

The spelling of 84256997 in words is "eighty-four million, two hundred fifty-six thousand, nine hundred ninety-seven".