972803638 has 8 divisors (see below), whose sum is σ = 1494795960. Its totient is φ = 474538320.

The previous prime is 972803633. The next prime is 972803677. The reversal of 972803638 is 836308279.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972803633) 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, 5931648 + ... + 5931811.

It is an arithmetic number, because the mean of its divisors is an integer number (186849495).

Almost surely, 2^972803638 is an apocalyptic number.

972803638 is a deficient number, since it is larger than the sum of its proper divisors (521992322).

972803638 is a wasteful number, since it uses less digits than its factorization.

972803638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11863502.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 972803638 is about 31189.8002237911. The cubic root of 972803638 is about 990.8510988697.

The spelling of 972803638 in words is "nine hundred seventy-two million, eight hundred three thousand, six hundred thirty-eight".