972613649 has 8 divisors (see below), whose sum is σ = 1121757120. Its totient is φ = 826019856.

The previous prime is 972613637. The next prime is 972613669. The reversal of 972613649 is 946316279.

It is a happy number.

972613649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 972613649 - 2⁴ = 972613633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972613619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 636599 + ... + 638124.

It is an arithmetic number, because the mean of its divisors is an integer number (140219640).

Almost surely, 2^972613649 is an apocalyptic number.

It is an amenable number.

972613649 is a deficient number, since it is larger than the sum of its proper divisors (149143471).

972613649 is a wasteful number, since it uses less digits than its factorization.

972613649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274839.

The product of its digits is 489888, while the sum is 47.

The square root of 972613649 is about 31186.7543838727. The cubic root of 972613649 is about 990.7865901109.

The spelling of 972613649 in words is "nine hundred seventy-two million, six hundred thirteen thousand, six hundred forty-nine".