7444987 has 8 divisors (see below), whose sum is σ = 8145072. Its totient is φ = 6748800.

The previous prime is 7444981. The next prime is 7444993. The reversal of 7444987 is 7894447.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7444981) and next prime (7444993).

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

It is a cyclic number.

It is not a de Polignac number, because 7444987 - 2⁷ = 7444859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7444981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4287 + ... + 5767.

It is an arithmetic number, because the mean of its divisors is an integer number (1018134).

Almost surely, 2^7444987 is an apocalyptic number.

7444987 is a deficient number, since it is larger than the sum of its proper divisors (700085).

7444987 is a wasteful number, since it uses less digits than its factorization.

7444987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949.

The product of its digits is 225792, while the sum is 43.

The square root of 7444987 is about 2728.5503477121. The cubic root of 7444987 is about 195.2636101674.

The spelling of 7444987 in words is "seven million, four hundred forty-four thousand, nine hundred eighty-seven".