987222743 has 4 divisors (see below), whose sum is σ = 1063162968. Its totient is φ = 911282520.

The previous prime is 987222707. The next prime is 987222757. The reversal of 987222743 is 347222789.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 987222743 - 2¹² = 987218647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 987222694 and 987222703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987222763) 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, 37970093 + ... + 37970118.

It is an arithmetic number, because the mean of its divisors is an integer number (265790742).

Almost surely, 2^987222743 is an apocalyptic number.

987222743 is a deficient number, since it is larger than the sum of its proper divisors (75940225).

987222743 is a wasteful number, since it uses less digits than its factorization.

987222743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75940224.

The product of its digits is 338688, while the sum is 44.

The square root of 987222743 is about 31420.1009387303. The cubic root of 987222743 is about 995.7226446504.

The spelling of 987222743 in words is "nine hundred eighty-seven million, two hundred twenty-two thousand, seven hundred forty-three".