84073739 has 4 divisors (see below), whose sum is σ = 86124360. Its totient is φ = 82023120.

The previous prime is 84073711. The next prime is 84073757. The reversal of 84073739 is 93737048.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84073739 is a prime.

It is a super-3 number, since 3×84073739³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2050579 = 84073739 / (8 + 4 + 0 + 7 + 3 + 7 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84073696 and 84073705.

It is not an unprimeable number, because it can be changed into a prime (84073709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025249 + ... + 1025330.

It is an arithmetic number, because the mean of its divisors is an integer number (21531090).

Almost surely, 2^84073739 is an apocalyptic number.

84073739 is a deficient number, since it is larger than the sum of its proper divisors (2050621).

84073739 is a wasteful number, since it uses less digits than its factorization.

84073739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050620.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 84073739 is about 9169.1732997037. The cubic root of 84073739 is about 438.0800278421.

The spelling of 84073739 in words is "eighty-four million, seventy-three thousand, seven hundred thirty-nine".