7488981 has 6 divisors (see below), whose sum is σ = 10817430. Its totient is φ = 4992648.

The previous prime is 7488973. The next prime is 7488991. The reversal of 7488981 is 1898847.

7488981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4796100 + 2692881 = 2190^2 + 1641^2 .

It is not a de Polignac number, because 7488981 - 2³ = 7488973 is a prime.

It is a super-2 number, since 2×7488981² = 112169672836722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7488991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 416046 + ... + 416063.

It is an arithmetic number, because the mean of its divisors is an integer number (1802905).

Almost surely, 2^7488981 is an apocalyptic number.

It is an amenable number.

7488981 is a deficient number, since it is larger than the sum of its proper divisors (3328449).

7488981 is a wasteful number, since it uses less digits than its factorization.

7488981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832115 (or 832112 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 7488981 is about 2736.6002631002. The cubic root of 7488981 is about 195.6474730143.

The spelling of 7488981 in words is "seven million, four hundred eighty-eight thousand, nine hundred eighty-one".