84372971 has 2 divisors, whose sum is σ = 84372972. Its totient is φ = 84372970.

The previous prime is 84372961. The next prime is 84372983. The reversal of 84372971 is 17927348.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84372971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84372941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42186485 + 42186486.

It is an arithmetic number, because the mean of its divisors is an integer number (42186486).

Almost surely, 2^84372971 is an apocalyptic number.

84372971 is a deficient number, since it is larger than the sum of its proper divisors (1).

84372971 is an equidigital number, since it uses as much as digits as its factorization.

84372971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 41.

The square root of 84372971 is about 9185.4760900021. The cubic root of 84372971 is about 438.5991449515.

The spelling of 84372971 in words is "eighty-four million, three hundred seventy-two thousand, nine hundred seventy-one".