7488991 has 2 divisors, whose sum is σ = 7488992. Its totient is φ = 7488990.

The previous prime is 7488973. The next prime is 7489033. The reversal of 7488991 is 1998847.

It is a happy number.

7488991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7488991 - 2⁷ = 7488863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7483991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3744495 + 3744496.

It is an arithmetic number, because the mean of its divisors is an integer number (3744496).

Almost surely, 2^7488991 is an apocalyptic number.

7488991 is a deficient number, since it is larger than the sum of its proper divisors (1).

7488991 is an equidigital number, since it uses as much as digits as its factorization.

7488991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 46.

The square root of 7488991 is about 2736.6020901841. The cubic root of 7488991 is about 195.6475600966.

The spelling of 7488991 in words is "seven million, four hundred eighty-eight thousand, nine hundred ninety-one".