84342407 has 2 divisors, whose sum is σ = 84342408. Its totient is φ = 84342406.

The previous prime is 84342367. The next prime is 84342437. The reversal of 84342407 is 70424348.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84342407 - 2⁶ = 84342343 is a prime.

It is a super-2 number, since 2×84342407² = 14227283237107298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84342437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42171203 + 42171204.

It is an arithmetic number, because the mean of its divisors is an integer number (42171204).

Almost surely, 2^84342407 is an apocalyptic number.

84342407 is a deficient number, since it is larger than the sum of its proper divisors (1).

84342407 is an equidigital number, since it uses as much as digits as its factorization.

84342407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 84342407 is about 9183.8122258679. The cubic root of 84342407 is about 438.5461778969.

The spelling of 84342407 in words is "eighty-four million, three hundred forty-two thousand, four hundred seven".