84251967 has 16 divisors (see below), whose sum is σ = 117469440. Its totient is φ = 53611712.

The previous prime is 84251963. The next prime is 84251971. The reversal of 84251967 is 76915248.

It is an interprime number because it is at equal distance from previous prime (84251963) and next prime (84251971).

It is not a de Polignac number, because 84251967 - 2² = 84251963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84251963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41584 + ... + 43562.

It is an arithmetic number, because the mean of its divisors is an integer number (7341840).

Almost surely, 2^84251967 is an apocalyptic number.

84251967 is a deficient number, since it is larger than the sum of its proper divisors (33217473).

84251967 is a wasteful number, since it uses less digits than its factorization.

84251967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622.

The product of its digits is 120960, while the sum is 42.

The square root of 84251967 is about 9178.8870240351. The cubic root of 84251967 is about 438.3893714429.

The spelling of 84251967 in words is "eighty-four million, two hundred fifty-one thousand, nine hundred sixty-seven".