744216987 has 4 divisors (see below), whose sum is σ = 992289320. Its totient is φ = 496144656.

The previous prime is 744216961. The next prime is 744216997. The reversal of 744216987 is 789612447.

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

It is not a de Polignac number, because 744216987 - 2⁷ = 744216859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (744216997) 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, 124036162 + ... + 124036167.

It is an arithmetic number, because the mean of its divisors is an integer number (248072330).

Almost surely, 2^744216987 is an apocalyptic number.

744216987 is a deficient number, since it is larger than the sum of its proper divisors (248072333).

744216987 is a wasteful number, since it uses less digits than its factorization.

744216987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248072332.

The product of its digits is 677376, while the sum is 48.

The square root of 744216987 is about 27280.3406686940. The cubic root of 744216987 is about 906.2190614440.

The spelling of 744216987 in words is "seven hundred forty-four million, two hundred sixteen thousand, nine hundred eighty-seven".