970408393 has 4 divisors (see below), whose sum is σ = 971515780. Its totient is φ = 969301008.

The previous prime is 970408349. The next prime is 970408421. The reversal of 970408393 is 393804079.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393804079 = 29 ⋅13579451.

It can be written as a sum of positive squares in 2 ways, for example, as 318729609 + 651678784 = 17853^2 + 25528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-970408393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (970408343) 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, 552378 + ... + 554131.

It is an arithmetic number, because the mean of its divisors is an integer number (242878945).

Almost surely, 2^970408393 is an apocalyptic number.

It is an amenable number.

970408393 is a deficient number, since it is larger than the sum of its proper divisors (1107387).

970408393 is a wasteful number, since it uses less digits than its factorization.

970408393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107386.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 970408393 is about 31151.3786693302. The cubic root of 970408393 is about 990.0372033089.

The spelling of 970408393 in words is "nine hundred seventy million, four hundred eight thousand, three hundred ninety-three".