7098649 has 4 divisors (see below), whose sum is σ = 7343460. Its totient is φ = 6853840.

The previous prime is 7098629. The next prime is 7098653. The reversal of 7098649 is 9468907.

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 1338649 + 5760000 = 1157^2 + 2400^2 .

It is a cyclic number.

It is not a de Polignac number, because 7098649 - 2⁷ = 7098521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7098629) 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, 122362 + ... + 122419.

It is an arithmetic number, because the mean of its divisors is an integer number (1835865).

Almost surely, 2^7098649 is an apocalyptic number.

It is an amenable number.

7098649 is a deficient number, since it is larger than the sum of its proper divisors (244811).

7098649 is a wasteful number, since it uses less digits than its factorization.

7098649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244810.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 7098649 is about 2664.3289962015. The cubic root of 7098649 is about 192.1875428074.

The spelling of 7098649 in words is "seven million, ninety-eight thousand, six hundred forty-nine".