84084031 has 2 divisors, whose sum is σ = 84084032. Its totient is φ = 84084030.

The previous prime is 84084001. The next prime is 84084037. The reversal of 84084031 is 13048048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84084031 - 2¹³ = 84075839 is a prime.

It is a super-2 number, since 2×84084031² = 14140248538417922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84084037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42042015 + 42042016.

It is an arithmetic number, because the mean of its divisors is an integer number (42042016).

Almost surely, 2^84084031 is an apocalyptic number.

84084031 is a deficient number, since it is larger than the sum of its proper divisors (1).

84084031 is an equidigital number, since it uses as much as digits as its factorization.

84084031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 84084031 is about 9169.7345108787. The cubic root of 84084031 is about 438.0979031650.

The spelling of 84084031 in words is "eighty-four million, eighty-four thousand, thirty-one".