7098421 has 8 divisors (see below), whose sum is σ = 8080704. Its totient is φ = 6172320.

The previous prime is 7098391. The next prime is 7098431. The reversal of 7098421 is 1248907.

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

It is not a de Polignac number, because 7098421 - 2⁷ = 7098293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7098431) 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, 13776 + ... + 14281.

It is an arithmetic number, because the mean of its divisors is an integer number (1010088).

Almost surely, 2^7098421 is an apocalyptic number.

It is an amenable number.

7098421 is a deficient number, since it is larger than the sum of its proper divisors (982283).

7098421 is a wasteful number, since it uses less digits than its factorization.

7098421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28091.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 7098421 is about 2664.2862083492. The cubic root of 7098421 is about 192.1854851751.

The spelling of 7098421 in words is "seven million, ninety-eight thousand, four hundred twenty-one".