698274921 has 8 divisors (see below), whose sum is σ = 931279264. Its totient is φ = 465393600.

The previous prime is 698274919. The next prime is 698274923. The reversal of 698274921 is 129472896.

It is an interprime number because it is at equal distance from previous prime (698274919) and next prime (698274923).

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

It is not a de Polignac number, because 698274921 - 2¹ = 698274919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (698274923) 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, 16576 + ... + 40881.

It is an arithmetic number, because the mean of its divisors is an integer number (116409908).

Almost surely, 2^698274921 is an apocalyptic number.

It is an amenable number.

698274921 is a deficient number, since it is larger than the sum of its proper divisors (233004343).

698274921 is a wasteful number, since it uses less digits than its factorization.

698274921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61511.

The product of its digits is 435456, while the sum is 48.

The square root of 698274921 is about 26424.8920716812. The cubic root of 698274921 is about 887.1740186395.

The spelling of 698274921 in words is "six hundred ninety-eight million, two hundred seventy-four thousand, nine hundred twenty-one".