7498221 has 8 divisors (see below), whose sum is σ = 10019520. Its totient is φ = 4987872.

The previous prime is 7498201. The next prime is 7498229. The reversal of 7498221 is 1228947.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7498221 - 2⁵ = 7498189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7498229) 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, 976 + ... + 3993.

It is an arithmetic number, because the mean of its divisors is an integer number (1252440).

Almost surely, 2^7498221 is an apocalyptic number.

It is an amenable number.

7498221 is a deficient number, since it is larger than the sum of its proper divisors (2521299).

7498221 is a wasteful number, since it uses less digits than its factorization.

7498221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475.

The product of its digits is 8064, while the sum is 33.

The square root of 7498221 is about 2738.2879687863. The cubic root of 7498221 is about 195.7279040578.

The spelling of 7498221 in words is "seven million, four hundred ninety-eight thousand, two hundred twenty-one".