971495393 has 4 divisors (see below), whose sum is σ = 1059813168. Its totient is φ = 883177620.

The previous prime is 971495381. The next prime is 971495401. The reversal of 971495393 is 393594179.

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 971495393 - 2¹⁰ = 971494369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (971495303) 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, 44158871 + ... + 44158892.

It is an arithmetic number, because the mean of its divisors is an integer number (264953292).

Almost surely, 2^971495393 is an apocalyptic number.

It is an amenable number.

971495393 is a deficient number, since it is larger than the sum of its proper divisors (88317775).

971495393 is a wasteful number, since it uses less digits than its factorization.

971495393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88317774.

The product of its digits is 918540, while the sum is 50.

The square root of 971495393 is about 31168.8208471222. The cubic root of 971495393 is about 990.4067277533.

The spelling of 971495393 in words is "nine hundred seventy-one million, four hundred ninety-five thousand, three hundred ninety-three".