987747222 has 32 divisors (see below), whose sum is σ = 2462955264. Its totient is φ = 256557600.

The previous prime is 987747193. The next prime is 987747223. The reversal of 987747222 is 222747789.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987747223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1068529 + ... + 1069452.

It is an arithmetic number, because the mean of its divisors is an integer number (76967352).

Almost surely, 2^987747222 is an apocalyptic number.

987747222 is an abundant number, since it is smaller than the sum of its proper divisors (1475208042).

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

987747222 is a wasteful number, since it uses less digits than its factorization.

987747222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138004.

The product of its digits is 790272, while the sum is 48.

The square root of 987747222 is about 31428.4460640357. The cubic root of 987747222 is about 995.8989450060.

The spelling of 987747222 in words is "nine hundred eighty-seven million, seven hundred forty-seven thousand, two hundred twenty-two".