3994567973 has 8 divisors (see below), whose sum is σ = 4358507616. Its totient is φ = 3630761200.

The previous prime is 3994567943. The next prime is 3994568009. The reversal of 3994567973 is 3797654993.

3994567973 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3994567973 - 2¹⁰ = 3994566949 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 (3994567933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35915 + ... + 96327.

It is an arithmetic number, because the mean of its divisors is an integer number (544813452).

Almost surely, 2^3994567973 is an apocalyptic number.

It is an amenable number.

3994567973 is a deficient number, since it is larger than the sum of its proper divisors (363939643).

3994567973 is a wasteful number, since it uses less digits than its factorization.

3994567973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66435.

The product of its digits is 38578680, while the sum is 62.

The square root of 3994567973 is about 63202.5946698393. The cubic root of 3994567973 is about 1586.6821593351.

The spelling of 3994567973 in words is "three billion, nine hundred ninety-four million, five hundred sixty-seven thousand, nine hundred seventy-three".