973051421 has 4 divisors (see below), whose sum is σ = 973403100. Its totient is φ = 972699744.

The previous prime is 973051369. The next prime is 973051439. The reversal of 973051421 is 124150379.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124150379 = 2081 ⋅59659.

It can be written as a sum of positive squares in 2 ways, for example, as 337456900 + 635594521 = 18370^2 + 25211^2 .

It is a cyclic number.

It is not a de Polignac number, because 973051421 - 2²² = 968857117 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 (973051021) 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, 171656 + ... + 177233.

It is an arithmetic number, because the mean of its divisors is an integer number (243350775).

Almost surely, 2^973051421 is an apocalyptic number.

It is an amenable number.

973051421 is a deficient number, since it is larger than the sum of its proper divisors (351679).

973051421 is a wasteful number, since it uses less digits than its factorization.

973051421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351678.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 973051421 is about 31193.7721508637. The cubic root of 973051421 is about 990.9352183522.

The spelling of 973051421 in words is "nine hundred seventy-three million, fifty-one thousand, four hundred twenty-one".