84497967 has 24 divisors (see below), whose sum is σ = 129214800. Its totient is φ = 53117568.

The previous prime is 84497951. The next prime is 84497989. The reversal of 84497967 is 76979448.

It is a happy number.

It is not a de Polignac number, because 84497967 - 2⁴ = 84497951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84497927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7459 + ... + 14987.

It is an arithmetic number, because the mean of its divisors is an integer number (5383950).

Almost surely, 2^84497967 is an apocalyptic number.

84497967 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

84497967 is a deficient number, since it is larger than the sum of its proper divisors (44716833).

84497967 is a wasteful number, since it uses less digits than its factorization.

84497967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7607 (or 7604 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 84497967 is about 9192.2775741380. The cubic root of 84497967 is about 438.8156285298.

The spelling of 84497967 in words is "eighty-four million, four hundred ninety-seven thousand, nine hundred sixty-seven".