84073744397 has 4 divisors (see below), whose sum is σ = 84096233760. Its totient is φ = 84051255036.

The previous prime is 84073744387. The next prime is 84073744429. The reversal of 84073744397 is 79344737048.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84073744397 - 2¹⁰ = 84073743373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84073744327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11239073 + ... + 11246550.

It is an arithmetic number, because the mean of its divisors is an integer number (21024058440).

Almost surely, 2^84073744397 is an apocalyptic number.

It is an amenable number.

84073744397 is a deficient number, since it is larger than the sum of its proper divisors (22489363).

84073744397 is a wasteful number, since it uses less digits than its factorization.

84073744397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22489362.

The product of its (nonzero) digits is 14224896, while the sum is 56.

The spelling of 84073744397 in words is "eighty-four billion, seventy-three million, seven hundred forty-four thousand, three hundred ninety-seven".