973396381 has 4 divisors (see below), whose sum is σ = 986730652. Its totient is φ = 960062112.

The previous prime is 973396321. The next prime is 973396393. The reversal of 973396381 is 183693379.

973396381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 281232900 + 692163481 = 16770^2 + 26309^2 .

It is a cyclic number.

It is not a de Polignac number, because 973396381 - 2¹⁵ = 973363613 is a prime.

It is a super-2 number, since 2×973396381² = 1895001029087794322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (973396321) 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, 6667026 + ... + 6667171.

It is an arithmetic number, because the mean of its divisors is an integer number (246682663).

Almost surely, 2^973396381 is an apocalyptic number.

It is an amenable number.

973396381 is a deficient number, since it is larger than the sum of its proper divisors (13334271).

973396381 is a wasteful number, since it uses less digits than its factorization.

973396381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13334270.

The product of its digits is 734832, while the sum is 49.

The square root of 973396381 is about 31199.3009697333. The cubic root of 973396381 is about 991.0523045338.

The spelling of 973396381 in words is "nine hundred seventy-three million, three hundred ninety-six thousand, three hundred eighty-one".