7409491 has 8 divisors (see below), whose sum is σ = 7533504. Its totient is φ = 7286760.

The previous prime is 7409483. The next prime is 7409497. The reversal of 7409491 is 1949047.

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 7409491 - 2³ = 7409483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7409497) 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, 21180 + ... + 21526.

It is an arithmetic number, because the mean of its divisors is an integer number (941688).

Almost surely, 2^7409491 is an apocalyptic number.

7409491 is a deficient number, since it is larger than the sum of its proper divisors (124013).

7409491 is a wasteful number, since it uses less digits than its factorization.

7409491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 7409491 is about 2722.0380232466. The cubic root of 7409491 is about 194.9527915525.

The spelling of 7409491 in words is "seven million, four hundred nine thousand, four hundred ninety-one".