84293971 has 2 divisors, whose sum is σ = 84293972. Its totient is φ = 84293970.

The previous prime is 84293959. The next prime is 84293977. The reversal of 84293971 is 17939248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84293971 - 2¹⁷ = 84162899 is a prime.

It is not a weakly prime, because it can be changed into another prime (84293977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42146985 + 42146986.

It is an arithmetic number, because the mean of its divisors is an integer number (42146986).

Almost surely, 2^84293971 is an apocalyptic number.

84293971 is a deficient number, since it is larger than the sum of its proper divisors (1).

84293971 is an equidigital number, since it uses as much as digits as its factorization.

84293971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 43.

The square root of 84293971 is about 9181.1748158937. The cubic root of 84293971 is about 438.4622126616.

It can be divided in two parts, 84293 and 971, that added together give a square (85264 = 292²).

The spelling of 84293971 in words is "eighty-four million, two hundred ninety-three thousand, nine hundred seventy-one".