972279452 has 6 divisors (see below), whose sum is σ = 1701489048. Its totient is φ = 486139724.

The previous prime is 972279431. The next prime is 972279461. The reversal of 972279452 is 254972279.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 972279397 and 972279406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121534928 + ... + 121534935.

It is an arithmetic number, because the mean of its divisors is an integer number (283581508).

Almost surely, 2^972279452 is an apocalyptic number.

It is an amenable number.

972279452 is a deficient number, since it is larger than the sum of its proper divisors (729209596).

972279452 is a wasteful number, since it uses less digits than its factorization.

972279452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243069867 (or 243069865 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The square root of 972279452 is about 31181.3959277002. The cubic root of 972279452 is about 990.6730966600.

The spelling of 972279452 in words is "nine hundred seventy-two million, two hundred seventy-nine thousand, four hundred fifty-two".