971272646 has 8 divisors (see below), whose sum is σ = 1464305040. Its totient is φ = 483170968.

The previous prime is 971272639. The next prime is 971272663. The reversal of 971272646 is 646272179.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 971272597 and 971272606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1232186 + ... + 1232973.

It is an arithmetic number, because the mean of its divisors is an integer number (183038130).

Almost surely, 2^971272646 is an apocalyptic number.

971272646 is a deficient number, since it is larger than the sum of its proper divisors (493032394).

971272646 is a wasteful number, since it uses less digits than its factorization.

971272646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465358.

The product of its digits is 254016, while the sum is 44.

The square root of 971272646 is about 31165.2474079703. The cubic root of 971272646 is about 990.3310276207.

The spelling of 971272646 in words is "nine hundred seventy-one million, two hundred seventy-two thousand, six hundred forty-six".