7491013 has 4 divisors (see below), whose sum is σ = 7512588. Its totient is φ = 7469440.

The previous prime is 7491007. The next prime is 7491049. The reversal of 7491013 is 3101947.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5536609 + 1954404 = 2353^2 + 1398^2 .

It is a cyclic number.

It is not a de Polignac number, because 7491013 - 2⁵ = 7490981 is a prime.

It is a super-2 number, since 2×7491013² = 112230551532338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7491313) 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, 10258 + ... + 10963.

It is an arithmetic number, because the mean of its divisors is an integer number (1878147).

Almost surely, 2^7491013 is an apocalyptic number.

It is an amenable number.

7491013 is a deficient number, since it is larger than the sum of its proper divisors (21575).

7491013 is a wasteful number, since it uses less digits than its factorization.

7491013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21574.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 7491013 is about 2736.9715014958. The cubic root of 7491013 is about 195.6651665525.

The spelling of 7491013 in words is "seven million, four hundred ninety-one thousand, thirteen".