7480891 has 4 divisors (see below), whose sum is σ = 8160984. Its totient is φ = 6800800.

The previous prime is 7480861. The next prime is 7480903. The reversal of 7480891 is 1980847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1980847 = 11 ⋅180077.

It is a cyclic number.

It is not a de Polignac number, because 7480891 - 2⁷ = 7480763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7480891.

It is not an unprimeable number, because it can be changed into a prime (7480831) 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, 340030 + ... + 340051.

It is an arithmetic number, because the mean of its divisors is an integer number (2040246).

Almost surely, 2^7480891 is an apocalyptic number.

7480891 is a deficient number, since it is larger than the sum of its proper divisors (680093).

7480891 is a wasteful number, since it uses less digits than its factorization.

7480891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680092.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 7480891 is about 2735.1217523174. The cubic root of 7480891 is about 195.5769979907.

The spelling of 7480891 in words is "seven million, four hundred eighty thousand, eight hundred ninety-one".