394701973 has 4 divisors (see below), whose sum is σ = 396685600. Its totient is φ = 392718348.

The previous prime is 394701941. The next prime is 394701997. The reversal of 394701973 is 379107493.

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, and also an emirpimes, since its reverse is a distinct semiprime: 379107493 = 587 ⋅645839.

It is a cyclic number.

It is not a de Polignac number, because 394701973 - 2⁵ = 394701941 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 (394701913) 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, 991515 + ... + 991912.

It is an arithmetic number, because the mean of its divisors is an integer number (99171400).

Almost surely, 2^394701973 is an apocalyptic number.

It is an amenable number.

394701973 is a deficient number, since it is larger than the sum of its proper divisors (1983627).

394701973 is a wasteful number, since it uses less digits than its factorization.

394701973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983626.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 394701973 is about 19867.1078166904. The cubic root of 394701973 is about 733.5388145718.

The spelling of 394701973 in words is "three hundred ninety-four million, seven hundred one thousand, nine hundred seventy-three".