972218850 has 48 divisors (see below), whose sum is σ = 2413318752. Its totient is φ = 259020160.

The previous prime is 972218839. The next prime is 972218861. The reversal of 972218850 is 58812279.

It is an interprime number because it is at equal distance from previous prime (972218839) and next prime (972218861).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212689 + ... + 217211.

It is an arithmetic number, because the mean of its divisors is an integer number (50277474).

Almost surely, 2^972218850 is an apocalyptic number.

972218850 is an abundant number, since it is smaller than the sum of its proper divisors (1441099902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

972218850 is a wasteful number, since it uses less digits than its factorization.

972218850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5971 (or 5966 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 972218850 is about 31180.4241472113. The cubic root of 972218850 is about 990.6525134082.

The spelling of 972218850 in words is "nine hundred seventy-two million, two hundred eighteen thousand, eight hundred fifty".