84038919 has 16 divisors (see below), whose sum is σ = 118346880. Its totient is φ = 52898400.

The previous prime is 84038893. The next prime is 84039017. The reversal of 84038919 is 91983048.

It is not a de Polignac number, because 84038919 - 2⁵ = 84038887 is a prime.

It is a super-2 number, since 2×84038919² = 14125079813377122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84038519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15744 + ... + 20394.

It is an arithmetic number, because the mean of its divisors is an integer number (7396680).

Almost surely, 2^84038919 is an apocalyptic number.

84038919 is a deficient number, since it is larger than the sum of its proper divisors (34307961).

84038919 is a wasteful number, since it uses less digits than its factorization.

84038919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4990.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 84038919 is about 9167.2743495545. The cubic root of 84038919 is about 438.0195410477.

The spelling of 84038919 in words is "eighty-four million, thirty-eight thousand, nine hundred nineteen".