7448991 has 16 divisors (see below), whose sum is σ = 11041920. Its totient is φ = 4428320.

The previous prime is 7448971. The next prime is 7449011. The reversal of 7448991 is 1998447.

It is an interprime number because it is at equal distance from previous prime (7448971) and next prime (7449011).

It is a cyclic number.

It is not a de Polignac number, because 7448991 - 2⁷ = 7448863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7448971) 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, 381 + ... + 3878.

It is an arithmetic number, because the mean of its divisors is an integer number (690120).

Almost surely, 2^7448991 is an apocalyptic number.

7448991 is a deficient number, since it is larger than the sum of its proper divisors (3592929).

7448991 is a wasteful number, since it uses less digits than its factorization.

7448991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326.

The product of its digits is 72576, while the sum is 42.

The square root of 7448991 is about 2729.2839720337. The cubic root of 7448991 is about 195.2986089022.

The spelling of 7448991 in words is "seven million, four hundred forty-eight thousand, nine hundred ninety-one".