84031406 has 4 divisors (see below), whose sum is σ = 126047112. Its totient is φ = 42015702.

The previous prime is 84031379. The next prime is 84031429. The reversal of 84031406 is 60413048.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×84031406² = 14122554388673672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007850 + ... + 21007853.

It is an arithmetic number, because the mean of its divisors is an integer number (31511778).

Almost surely, 2^84031406 is an apocalyptic number.

84031406 is a deficient number, since it is larger than the sum of its proper divisors (42015706).

84031406 is a wasteful number, since it uses less digits than its factorization.

84031406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42015705.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 84031406 is about 9166.8645675607. The cubic root of 84031406 is about 438.0064878142.

The spelling of 84031406 in words is "eighty-four million, thirty-one thousand, four hundred six".