84031407 has 12 divisors (see below), whose sum is σ = 121460040. Its totient is φ = 55983408.

The previous prime is 84031379. The next prime is 84031429. The reversal of 84031407 is 70413048.

It is not a de Polignac number, because 84031407 - 2¹⁰ = 84030383 is a prime.

It is a super-2 number, since 2×84031407² = 14122554724799298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84031457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20233 + ... + 24029.

It is an arithmetic number, because the mean of its divisors is an integer number (10121670).

Almost surely, 2^84031407 is an apocalyptic number.

84031407 is a deficient number, since it is larger than the sum of its proper divisors (37428633).

84031407 is a wasteful number, since it uses less digits than its factorization.

84031407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6262 (or 6259 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 84031407 is about 9166.8646221050. The cubic root of 84031407 is about 438.0064895517.

The spelling of 84031407 in words is "eighty-four million, thirty-one thousand, four hundred seven".